SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  -------------

                                  SCHEDULE 13D
                                 (RULE 13d-101)

                    UNDER THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 1)*

                                    GEOCITIES
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                    Common Stock, par value $0.001 per share
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   37247V 10 6
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                                 Gary Valenzuela
 Senior Vice President, Finance and Administration, and Chief Financial Officer
                                   Yahoo! Inc.
                             3420 Central Expressway
                          Santa Clara, California 95051
                                 (408) 731-3300
- --------------------------------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                                January 27, 1999
- --------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box |_|.

Note: Schedules filed in paper format shall include a signed original and five
copies of the Schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

                         (Continued on following pages)

                              (Page 1 of 12 Pages)



*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 2 OF 12 PAGES
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- --------------------------------------------------------------------------------
1               NAME OF REPORTING PERSON
                S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

                YAHOO! INC.
- --------------------------------------------------------------------------------
2               CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*       (a) / /
                                                                        (b) /X/
- --------------------------------------------------------------------------------
3               SEC USE ONLY

- --------------------------------------------------------------------------------
4               SOURCE OF FUNDS*
                WC
- --------------------------------------------------------------------------------
5               CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                PURSUANT TO ITEMS 2(d) or 2(e)                              / /
- --------------------------------------------------------------------------------
6               CITIZENSHIP OR PLACE OF ORGANIZATION
                CALIFORNIA
- --------------------------------------------------------------------------------
                        7      SOLE VOTING POWER
                               7,043,796 (1)
      NUMBER OF        ---------------------------------------------------------
        SHARES          8      SHARED VOTING POWER
     BENEFICIALLY              21,593,140 (2)
       OWNED BY        ---------------------------------------------------------
         EACH           9      SOLE DISPOSITIVE POWER
      REPORTING                7,043,796 (1)
        PERSON         ---------------------------------------------------------
         WITH           10     SHARED DISPOSITIVE POWER
                               0 (2)
- --------------------------------------------------------------------------------
11              AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                28,636,936 (1) AND (2)
- --------------------------------------------------------------------------------
12              CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11)
                EXCLUDES CERTAIN SHARES*                                    / /
- --------------------------------------------------------------------------------
13              PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                71.6%  (3)
- --------------------------------------------------------------------------------
14              TYPE OF REPORTING PERSON*
                CO
- --------------------------------------------------------------------------------
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1)      6,370,000 of the shares of common stock, par value $0.001 per share
         ("GeoCities Common Stock"), of GeoCities covered by this Schedule 13D
         are purchasable by Yahoo! upon exercise of an option granted to Yahoo!
         as of January 27, 1999 (the "Option"), and described in Items 3 and 4
         of this Schedule 13D. Prior to the exercise of the Option,



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 3 OF 12 PAGES
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         Yahoo! is not entitled to any rights as a stockholder of GeoCities as
         to the shares of GeoCities Common Stock covered by the Option. The
         Option may only be exercised upon the happening of certain events
         referred to in Item 4, none of which has occurred as of the date
         hereof. Yahoo! expressly disclaims beneficial ownership of any of the
         shares of GeoCities Common Stock which are purchasable by Yahoo! upon
         exercise of the Option until such time as Yahoo! purchases any such
         shares of GeoCities Common Stock upon any such exercise. Based on the
         number of shares of GeoCities Common Stock outstanding on January 27,
         1999 as represented by GeoCities in the Agreement and Plan of Merger by
         and among GeoCities, Yahoo! and Home Page Acquisition Corp., a Delaware
         corporation and a newly formed wholly owned direct subsidiary of Yahoo!
         ("Newco"), dated as of January 27, 1999 (the "Merger Agreement"), the
         number of shares of GeoCities Common Stock indicated represents 22.0%
         of the total outstanding shares of GeoCities Common Stock, excluding
         shares of GeoCities Common Stock issuable upon exercise of the Option.

(2)      21,593,140 of the shares of GeoCities Common Stock covered by this
         report are subject to voting agreements (the "Voting Agreements")
         entered into by certain stockholders of GeoCities with Yahoo! pursuant
         to which such stockholders have agreed to vote all of the shares of
         GeoCities Common Stock beneficially owned by such stockholders in favor
         of the proposed merger of Newco with and into GeoCities. Yahoo!
         expressly disclaims beneficial ownership of any of the shares of
         GeoCities Common Stock covered by the Voting Agreements. Based on the
         number of shares of GeoCities Common Stock outstanding on January 27,
         1999 as represented by GeoCities in the Merger Agreement, the number of
         shares of GeoCities Common Stock indicated represents approximately
         64.2% of the outstanding shares of GeoCities Common Stock, excluding
         the shares of GeoCities Common Stock issuable upon exercise of the
         Option (as described above).

(3)      After giving effect to the exercise of the Option.



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 4 OF 12 PAGES
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ITEM 1 - SECURITY AND ISSUER

      This statement on Schedule 13D (the "Schedule 13D") relates to the common
stock, par value $0.001 per share (the "Shares" or the "GeoCities Common
Stock"), of GeoCities, a Delaware corporation. The principal executive office of
GeoCities is located at 4499 Glencoe Avenue, Marina del Rey, California 90292.

ITEM 2 - IDENTITY AND BACKGROUND

      (a) - (c) This Schedule 13D is filed by Yahoo! Inc., a California
corporation. The address of the principal business and principal office of
Yahoo! is 3420 Central Expressway, Santa Clara, California 95051. Yahoo! is a
global Internet media company that offers a branded network of comprehensive
information, communication and shopping services to millions of users daily.

      As a result of entering into the Voting Agreements described in Items 3
and 4 below, Yahoo! may be deemed to have formed a "group" with each of the
Stockholders (as defined in Item 3 below) for purposes of Section 13(d)(3) of
the Act and Rule 13d-5(b)(1) thereunder. Yahoo! expressly declares that the
filing of this Schedule 13D shall not be construed as an admission by it that it
has formed any such group.

      To the best of Yahoo!'s knowledge as of the date hereof, the name,
business address, present principal occupation or employment and citizenship of
each executive officer and director of Yahoo!, and the name, principal business
and address of any corporation or other organization in which such employment is
conducted is set forth in Schedule I hereto. The information contained in
Schedule I is incorporated herein by reference.

      (d) - (e) During the last five years, neither Yahoo! nor, to the best
knowledge of Yahoo!, any of the executive officers or directors of Yahoo!, has
been convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors), or been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject to a judgment, decree or final order enjoining future
violations of, or prohibiting or mandating activities subject to, Federal or
State securities laws or finding any violation with respect to such laws.

ITEM 3 - SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

      All prior acquisitions of GeoCities Common Stock by Yahoo! have been made
using working capital of Yahoo!.

      Yahoo! entered into an Agreement and Plan of Merger dated as of January
27, 1999 by and among Yahoo!, Home Page Acquisition Corp., a Delaware
corporation and newly formed wholly owned direct subsidiary of Yahoo! ("Newco"),
and GeoCities (the "Merger Agreement"), providing for the merger (the "Merger")
of Newco with and into GeoCities with GeoCities as the



                                  SCHEDULE 13D

- ------------------------------                    ------------------------------
   CUSIP NO. 37247V 10 6                               PAGE 5 OF 12 PAGES
- ------------------------------                    ------------------------------


surviving corporation, pursuant to which each outstanding Share will be
converted into the right to receive .6768 of a share of common stock, par value
$0.00017 per share, of Yahoo! (as adjusted to reflect the 2-for-1 split of
Yahoo! common stock effective February 5, 1999). The Merger is subject to the
approval of the Merger Agreement by GeoCities' stockholders, the expiration of
the applicable waiting period under the Hart-Scott-Rodino Antitrust Improvements
Act of 1976, as amended, and any other required regulatory approvals, and the
satisfaction or waiver of certain other conditions as more fully described in
the Merger Agreement.

      As an inducement for Yahoo! to enter into the Merger Agreement and in
consideration thereof, GeoCities granted to Yahoo! an option (the "Option") to
purchase, under certain circumstances described in the Merger Agreement, up to
6,370,000 Shares at a purchase price per Share equal to $113.66, as adjusted as
provided therein (the "Purchase Price"). Based on the number of Shares
outstanding on January 27, 1999 as represented by GeoCities in the Merger
Agreement, the Option would be exercisable for approximately 19.9% of the
outstanding Shares, or approximately 16.6% of the Shares on a fully-diluted
basis after giving effect to the exercise of the Option. Yahoo! did not pay
additional consideration to GeoCities in connection with GeoCities granting the
Option.

      None of the Triggering Events (defined in Item 4 below) permitting the
exercise of the Option has occurred as of the date hereof. In the event that the
Option becomes exercisable and Yahoo! wishes to purchase the Shares subject
thereto, Yahoo! anticipates that it would fund the exercise price with working
capital. See also Item 4 below.

      As a further inducement for Yahoo! to enter into the Merger Agreement and
in consideration thereof, David C. Bohnett, CMG@Ventures I, LLC, CMG@Ventures
II, LLC, SOFTBANK Holdings, Inc., SOFTBANK America, Inc., and SOFTBANK
Technology Ventures IV (collectively, the "Stockholders"), entered into voting
agreements (the "Voting Agreements"), each dated as of January 27, 1999, with
Yahoo! whereby the Stockholders agreed, severally and not jointly, to vote all
of the Shares beneficially owned by them in favor of approval and adoption of
the Merger Agreement. Yahoo! did not pay additional consideration to any
Stockholder in connection with the execution and delivery of the Voting
Agreements. References to, and descriptions of, the Merger Agreement and the
Voting Agreements, respectively, as set forth above in this Item 3, are
qualified in their entirety by reference to the copies of the Merger Agreement
and the Voting Agreements, respectively, included as Exhibits 1 through 7 to
this Schedule 13D, and are incorporated in this Item 3 in their entirety where
such references and descriptions appear.

ITEM 4 - PURPOSE OF TRANSACTION

      (a) - (j) The information set forth, or incorporated by reference, in Item
3 is hereby incorporated herein by reference.



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 6 OF 12 PAGES
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      Pursuant to the Merger Agreement, GeoCities has granted Yahoo! the Option.
Upon the terms and subject to the conditions set forth in the Merger Agreement,
Yahoo! may exercise the Option, in whole or in part, at any time and from time
to time following the occurrence of certain events (each, a "Triggering Event").
In general, a Triggering Event may be deemed to occur: (a) if (i) the Board of
Directors of GeoCities shall for any reason have withdrawn or shall have amended
or modified in a manner adverse to Yahoo! its recommendation in favor of the
adoption and approval of the Merger Agreement or the approval of the Merger;
(ii) GeoCities shall have failed to include in the proxy statement/prospectus
the recommendation of the Board of Directors of GeoCities in favor of the
adoption and approval of the Merger Agreement and the approval of the Merger;
(iii) the Board of Directors of GeoCities shall have failed to reaffirm its
recommendation in favor of the adoption and approval of the Merger Agreement and
the approval of the Merger within ten (10) business days after Yahoo! requests
that such recommendation be reaffirmed at any time following the public
announcement of an Acquisition Proposal (as defined in the Merger Agreement);
(iv) the Board of Directors of GeoCities shall have approved or publicly
recommended any Acquisition Proposal; (v) GeoCities shall have entered into any
letter of intent or similar document or any agreement, contract or commitment
accepting any Acquisition Proposal; (vi) any tender or exchange offer relating
to securities of GeoCities in excess of 15% of its outstanding voting securities
shall have been commenced by a person unaffiliated with Yahoo! and GeoCities
shall not have sent to its security holders pursuant to Rule 14e-2 promulgated
under the Securities Act of 1933, as amended, within ten (10) business days
after such tender or exchange offer is first published, sent or given, a
statement disclosing that GeoCities recommends rejection of such tender or
exchange offer; or (vii) GeoCities shall have intentionally breached its
obligations under Section 5.4 (provisions regarding exclusivity) of the Merger
Agreement; or (b) upon termination of the Merger Agreement by either Yahoo! or
GeoCities if the requisite approval of the Merger Agreement by GeoCities'
stockholders is not obtained by reason of the failure to obtain the required
vote at a meeting of GeoCities' stockholders duly convened therefor or at any
adjournment thereof.

      Upon the occurrence of certain events set forth in the Merger Agreement,
GeoCities is required to make certain payment to Yahoo! upon the surrender of
all or a portion of the Option to GeoCities. In addition, the Merger Agreement
grants certain registration rights to Yahoo! with respect to the Shares subject
to the Option.

      Pursuant to the Voting Agreements, the Stockholders have agreed to vote
all of the Shares beneficially owned by them in favor of the approval and
adoption of the Merger Agreement. The Voting Agreements terminate upon the
earlier to occur of the completion of the Merger or the termination of the
Merger Agreement. The name of each Stockholder and the number of outstanding
shares of GeoCities Common Stock held by each Stockholder are set forth on the
signature pages to the Voting Agreement which are incorporated herein by
reference.

      The purpose of the Option and the Voting Agreements are to facilitate
consummation of the Merger.



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 7 OF 12 PAGES
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      Upon consummation of the Merger as contemplated by the Merger Agreement
(a) Newco will be merged into GeoCities, (b) the Board of Directors of GeoCities
will be replaced by the Board of Directors of Newco, (c) the Certificate of
Incorporation and Bylaws of GeoCities will be replaced by the Certificate of
Incorporation and Bylaws of Newco, (d) the Shares will cease to be authorized
for listing on the Nasdaq National Market and (e) the Shares will become
eligible for termination of registration pursuant to Section 12(g)(4) of the
Securities Exchange Act of 1934, as amended.

      References to, and descriptions of, the Merger Agreement and the Voting
Agreements, respectively, as set forth above in this Item 4, are qualified in
their entirety by reference to the copies of the Merger Agreement and the Voting
Agreements, respectively, included as Exhibits 1 through 7 to this Schedule 13D,
and are incorporated in this Item 4 in their entirety where such references and
descriptions appear.

ITEM 5 - INTEREST IN SECURITIES OF THE ISSUER

      (a) - (b) The number of Shares owned as of the date hereof by Yahoo! is
673,796, and the number of Shares covered by the Option is 6,370,000, which in
aggregate constitutes, based on the number of Shares outstanding on January 27,
1999 as represented by GeoCities in the Merger Agreement, approximately (i)
22.0% of GeoCities Common Stock, or (ii) 18.3% of the shares of GeoCities Common
Stock that would be outstanding after giving effect to the exercise of the
Option.

      Prior to the exercise of the Option, Yahoo! (i) is not entitled to any
rights as a stockholder of GeoCities as to the Shares covered by the Option and
(ii) disclaims any beneficial ownership of the shares of GeoCities Common Stock
which are purchasable by Yahoo! upon exercise of the Option because the Option
is exercisable only in the limited circumstances referred to in Item 4 above,
none of which has occurred as of the date hereof. If the Option were exercised,
Yahoo! would have the sole right to vote and to dispose of the shares of
GeoCities Common Stock issued as a result of such exercise, subject to the terms
and conditions of the Merger Agreement. See the information in Items 3 and 4
above with respect to the Option, which information is incorporated herein by
reference.

      The number of Shares covered by the Voting Agreements is 21,593,140
(including 1,600,000 shares subject to options held by Mr. Bohnett and
CMG@Ventures I, LLC), which constitutes approximately 64.2% of GeoCities Common
Stock, based on the number of Shares outstanding on January 27, 1999, as
represented by GeoCities in the Merger Agreement. By virtue of the Voting
Agreements, Yahoo! may be deemed to share with the respective Stockholders the
power to vote Shares subject to the Voting Agreements. However, Yahoo! (i) is
not entitled to any rights as a stockholder of GeoCities as to the Shares
covered by the Voting Agreements and (ii) disclaims any beneficial ownership of
the shares of GeoCities Common



                                  SCHEDULE 13D

- ------------------------------                    ------------------------------
   CUSIP NO. 37247V 10 6                               PAGE 8 OF 12 PAGES
- ------------------------------                    ------------------------------


Stock which are covered by the Voting Agreements. See the information in Item 2
with respect to the Stockholders and the information in Items 3 and 4 with
respect to the Voting Agreements, which information is incorporated herein by
reference.

      (c) Other than as set forth in this Item 5(a)-(b), to the best of Yahoo!'s
knowledge as of the date hereof (i) neither Yahoo! nor any subsidiary or
affiliate of Yahoo! nor any of Yahoo!'s executive officers or directors,
beneficially owns any shares of GeoCities Common Stock, and (ii) there have been
no transactions in the shares of GeoCities Common Stock effected during the past
60 days by Yahoo!, nor to the best of Yahoo!'s knowledge, by any subsidiary or
affiliate of Yahoo! or any of Yahoo!'s executive officers or directors.

      (d) No other person is known by Yahoo! to have the right to receive or the
power to direct the receipt of dividends from, or the proceeds from the sale of,
GeoCities Common Stock obtainable by Yahoo! upon exercise of the Option.

      (e) Not applicable.

      Reference to, and descriptions of, the Merger Agreement and the Voting
Agreements as set forth in this Item 5, are qualified in their entirety by
reference to the copies of the Merger Agreement and the Voting Agreements,
respectively, included as Exhibits 1 through 7 to this Schedule 13D, and
incorporated in this Item 5 in their entirety where such references and
descriptions appear.

ITEM 6 - CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO SECURITIES OF THE ISSUER

      The information set forth, or incorporated by reference, in Items 3
through 5 is hereby incorporated herein by reference. Copies of the Merger
Agreement and the Voting Agreements are included as Exhibits 1 through 7 to this
Schedule 13D. To the best of Yahoo!'s knowledge, except as described in this
Schedule 13D, there are at present no contracts, arrangements, understandings or
relationships (legal or otherwise) among the persons named in Item 2 above and
between any such persons and any person which respect to any securities to
GeoCities.

ITEM 7 - MATERIAL TO BE FILED AS EXHIBITS

Exhibit      Description

1            Agreement and Plan of Merger, dated as of January 27, 1999 by and
             among Yahoo! Inc., Home Page Acquisition Corp. and GeoCities
             (without exhibits).*

2            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and David C. Bohnett.*



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 9 OF 12 PAGES
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3            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and CMG@Ventures I, LLC.*

4            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and CMG@Ventures II, LLC.*

5            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and SOFTBANK Holdings, Inc.*

6            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and SOFTBANK Technology Ventures IV.*

7            Voting Agreement, dated as of January 27, 1999, by and between
             Yahoo! Inc. and SOFTBANK America, Inc.

*    Previously filed as an exhibit to the GeoCities Schedule 13D, filed
     February 8, 1999, and incorporated herein by reference.



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 10 OF 12 PAGES
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SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.


Date:  April 20, 1999                      YAHOO! INC.


                                           /s/ GARY VALENZUELA
                                           -------------------
                                           Gary Valenzuela
                                           Senior Vice President, Finance and
                                           Administration, and Chief Financial
                                           Officer



                                  SCHEDULE 13D

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   CUSIP NO. 37247V 10 6                               PAGE 11 OF 12 PAGES
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                                   SCHEDULE I

                        DIRECTORS AND EXECUTIVE OFFICERS
                                 OF YAHOO! INC.

         The following table sets forth the name, business address and present
principal occupation or employment of each director and executive officer of
Yahoo!. Except as indicated below, each such person is a U.S. citizen, and the
business address of each such person is 3420 Central Expressway, Santa Clara,
California 95051.

                               BOARD OF DIRECTORS

NAME AND TITLE PRESENT PRINCIPAL OCCUPATION - -------------- ---------------------------- Timothy Koogle, Chief Executive Officer and Chairman of the Board, Chairman of the Board Yahoo! Inc. Eric Hippeau, Chairman and Chief Executive Officer of Ziff-Davis, Director Inc. The address of Ziff-Davis is One Park Avenue, New York, New York 10016 Arthur H. Kern, Chairman and Chief Executive Officer of American Director Media. Jeff Mallett, President and Chief Operating Officer, Yahoo! Inc. Director Michael Moritz, General Partner, Sequoia Capital. The address of Director Sequoia Capital is 3000 Sand Hill Road, Building 4, Suite 280, Menlo Park, California 94025 Jerry Yang, Chief Yahoo, Yahoo! Inc. Director EXECUTIVE OFFICERS WHO ARE NOT DIRECTORS NAME AND TITLE TITLE AND PRESENT PRINCIPAL OCCUPATION - -------------- -------------------------------------- David Filo Chief Yahoo, Yahoo! Inc. Farzad Nazem Senior Vice President, Product Development and Operations, and Chief Technology Officer, Yahoo! Inc.
SCHEDULE 13D - ------------------------------ ------------------------------ CUSIP NO. 37247V 10 6 PAGE 12 OF 12 PAGES - ------------------------------ ------------------------------ James J. Nelson Vice President, Finance, Yahoo! Inc. John Place Vice President, General Counsel and Secretary, Yahoo! Inc. Anil Singh Senior Vice President, Sales, Yahoo! Inc. Gary Valenzuela Senior Vice President, Finance and Administration, and Chief Financial Officer, Yahoo! Inc.


                                   VOTING AGREEMENT


     THIS VOTING AGREEMENT is made and entered into as of January 27, 1999 (this
"VOTING AGREEMENT"), by and between Yahoo! Inc., a California corporation
("YAHOO!"), and the party identified on the signature page hereto
("STOCKHOLDER").

                                       RECITALS

     A.   Yahoo!, Home Page Acquisition Corp., a Delaware corporation and a
newly formed wholly owned direct subsidiary of Yahoo! ("MERGER SUB"), and
GeoCities, a Delaware corporation ("GEOCITIES"), have contemporaneously with the
execution of this Voting Agreement entered into an Agreement and Plan of Merger
dated as of January 27, 1999 (the "MERGER AGREEMENT") which provides, among
other things, that Merger Sub shall be merged (the "MERGER") with and into
GeoCities pursuant to the terms and conditions thereof;

     B.   As an essential condition and inducement to Yahoo! to enter into the
Merger Agreement and in consideration therefor, Stockholder and Yahoo! have
agreed to enter into this Voting Agreement; and

     C.   As of the date hereof, the Stockholder owns of record and beneficially
the shares of common stock, par value $0.001 per share, of GeoCities ("GEOCITIES
COMMON STOCK") set forth on the signature page hereto and desires to enter into
this Agreement with respect to such shares of GeoCities Common Stock;

     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
and agreements contained herein and in the Merger Agreement, the parties hereto
agree as follows:


                                      ARTICLE I

     1.   VOTING OF SHARES.

          1.1   VOTING AGREEMENT.  Stockholder hereby agrees to (a) appear, or
cause the holder of record on any applicable record date (the "RECORD HOLDER")
to appear for the purpose of obtaining a quorum at any annual or special meeting
of stockholders of the GeoCities and at any adjournment thereof at which matters
relating to the Merger, the Merger Agreement or any transaction contemplated
thereby are considered and (b) vote, or cause the Record Holder to vote, in
person or by proxy, all of the shares of the GeoCities Common Stock owned by
Stockholder, or with respect to which such Stockholder has or shares voting
power or control, and all of the shares of GeoCities Common Stock which shall,
or with respect to which voting power or control shall, hereafter be acquired by
Stockholder (collectively, the "SHARES") in favor of the Merger, the Merger
Agreement and the transactions contemplated by the Merger



Agreement.  In the event written consents are solicited or otherwise sought from
stockholders of GeoCities with respect to approval or adoption of the Merger
Agreement, with respect to the approval of the Merger or with respect to any of
the other actions contemplated by the Merger Agreement, Stockholder shall
(unless otherwise directed by Yahoo!) execute, or cause the Record Holder to
execute, with respect to all Shares a written consent or written consents to
such proposed action.

          1.2   GRANT OF PROXY.  In furtherance of the foregoing, Stockholder,
by this Agreement, with respect to all Shares now owned of record or that may
hereafter be acquired by Stockholder at anytime prior to the Effective Time,
does hereby constitute and appoint Yahoo! and Merger Sub, or any nominee of
Yahoo! and Merger Sub, with full power of substitution, for the date hereof to
the earlier to occur of the termination of this Voting Agreement or the
Effective Time, as its true and lawful attorney and proxy (its "PROXY"), for and
in its name, place and stead, to demand that the Secretary of GeoCities call a
special meeting of stockholders of GeoCities for the purpose of considering any
action related to the Merger Agreement and to vote each of such Shares as its
Proxy at every annual, special or adjourned meeting of stockholders of
GeoCities, including the right to sign its name (as stockholder) to any consent,
certificate or other document relating to GeoCities that the law of the State of
Delaware may permit or require, in favor of the Merger, the Merger Agreement and
the transactions contemplated by the Merger Agreement.  This Proxy and power of
attorney is irrevocable to the fullest extent permitted by the law of the State
of Delaware and is coupled with an interest.

          1.3   FURTHER ASSURANCES.  Stockholder shall perform such further
acts and execute such further documents and instruments as may reasonably be
required to vest in Yahoo! and Merger Sub the power to carry out and give effect
to the provisions of this Voting Agreement.

          1.4   NO OWNERSHIP INTEREST.  Nothing contained in this Voting
Agreement shall be deemed to vest in Yahoo! any direct or indirect ownership or
incidence of ownership of or with respect to any Shares.  All rights, ownership
and economic benefits of and relating to the Shares shall remain and belong to
Stockholder, and Yahoo! shall have no authority to manage, direct, superintend,
restrict, regulate, govern, or administer any of the policies or operations of
the GeoCities or exercise any power or authority to direct Stockholder in the
voting of any of the Shares, except as otherwise provided herein, or the
performance of Stockholder's duties or responsibilities as a stockholder of the
GeoCities.

          1.5   DOCUMENTS DELIVERED.  Stockholder acknowledges receipt of
copies of the following documents: 

          (a)   the Merger Agreement and all Exhibits and Schedules thereto;
and


                                         -2-


          (b)   each report filed with the Securities and Exchange Commission
by the Yahoo! on Forms 8-K and 10-Q since August 1, 1998.

          1.6   NO INCONSISTENT AGREEMENTS.  Each Stockholder hereby covenants
and agrees that, except as contemplated by this Voting Agreement and the Merger
Agreement, the Stockholder (a) has not entered, and shall not enter at any time
while this Voting Agreement remains in effect, into any voting agreement and (b)
has not granted, and shall not grant at any time while this Voting Agreement
remains in effect, a proxy or power of attorney, in either case which is
inconsistent with this Voting Agreement. 

                                      ARTICLE II

     2.   TRANSFER.

          2.1   TRANSFER OF TITLE.

          (a)   Stockholder hereby covenants and agrees that Stockholder will
not, prior to the termination of this Voting Agreement, either directly or
indirectly, sell, assign, pledge, hypothecate, transfer, exchange, or dispose
("TRANSFER") of any Shares or options to purchase GeoCities Common Stock
("OPTIONS") or any other securities or rights convertible into or exchangeable
for shares of GeoCities Common Stock, owned either directly or indirectly by
Stockholder or with respect to which Stockholder has the power of disposition,
whether now or hereafter acquired, without the prior written consent of Yahoo!;
PROVIDED that nothing contained herein will be deemed to restrict the exercise
of Options; and PROVIDED FURTHER that the foregoing requirements shall not
prohibit any Transfer to any person or entity where as a pre-condition to such
Transfer the transferee agrees to be bound by all of the terms and conditions of
this Voting Agreement and delivers a duly executed copy of this Voting Agreement
to Yahoo! to evidence such agreement.

          (b)   Stockholder hereby agrees and consents to the entry of stop
transfer instructions by the GeoCities against the transfer of any Shares
consistent with the terms of Section 2.1(a) hereof.

                                     ARTICLE III

     3.   REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER.  Stockholder hereby
represents and warrants to Yahoo! as follows:

          3.1   AUTHORITY RELATIVE TO THIS AGREEMENT.  Stockholder is competent
to execute and deliver this Voting Agreement, to perform its obligations
hereunder and to consummate the transactions contemplated hereby.  This Voting
Agreement has been duly and validly executed and delivered by Stockholder and,
assuming the due authorization, execution and delivery by Yahoo!, constitutes a
legal, valid and binding obligation of Stockholder, enforceable against
Stockholder in accordance with its terms.


                                         -3-


          3.2   NO CONFLICT.  The execution and delivery of this Voting
Agreement by Stockholder does not, and the performance of this Voting Agreement
by Stockholder shall not, result in any breach of or constitute a default (or an
event that with notice or lapse of time or both would become a default) under,
or give to others any rights of termination, amendment, acceleration or
cancellation of, or result in the creation of a lien or encumbrance, on any of
the Shares or Options pursuant to, any note, bond, mortgage, indenture,
contract, agreement, lease, license, permit, franchise or other instrument or
obligation to which Stockholder is a party or by which Stockholder or the Shares
or Options are bound or affected.

          3.3   TITLE TO THE SHARES.  The Shares and Options held by
Stockholder are owned free and clear of all security interests, liens, claims,
pledges, options, rights of first refusal, agreements, limitations on
Stockholder's voting rights, charges and other encumbrances of any nature
whatsoever, and Stockholder has not appointed or granted any proxy, which
appointment or grant remains effective, with respect to the Shares (other than
under this Voting Agreement).

                                      ARTICLE IV

     4.   MISCELLANEOUS.

          4.1   NO SOLICITATION.  From the date hereof until the Effective Time
or, if earlier, the termination of the Merger Agreement, Stockholder shall not
(whether directly or indirectly through advisors, agents or other
intermediaries) (a) solicit, initiate or encourage any Acquisition Proposal or
(b) engage in discussions or negotiations with, or disclose any non-public
information relating to the GeoCities or its subsidiaries to any person that has
made an Acquisition Proposal or has advised Stockholder, or to its knowledge,
GeoCities or any other stockholder of the GeoCities, that such person is
interested in making an Acquisition Proposal.

          4.2   TERMINATION.  This Agreement shall terminate upon the earliest
to occur of (a) the termination of the Merger Agreement in accordance with its
terms or (b) the Effective Time.  Upon such termination, no party shall have any
further obligations or liabilities hereunder, PROVIDED that no such termination
shall relieve any party from liability for any breach of this Voting Agreement
prior to such termination.

          4.3   ENFORCEMENT OF AGREEMENT.  The parties hereto agree that
irreparable damage would occur in the event that any of the provisions of this
Voting Agreement were not performed in accordance with its specified terms or
were otherwise breached.  It is accordingly agreed that the parties shall be
entitled to an injunction or injunctions to prevent breaches of this Voting
Agreement and to specific performance of the terms and provisions hereof in
addition to any other remedy to which they are entitled at law or in equity.

          4.4   SUCCESSORS AND AFFILIATES.  This Voting Agreement shall inure
to the benefit of and shall be binding upon the parties hereto and their
respective heirs, legal representatives and permitted assigns.  If Stockholder
shall at any time hereafter acquire ownership of, or voting power with respect
to, any additional Shares in any manner, whether by


                                         -4-


the exercise of any Options or any securities or rights convertible into or
exchangeable for shares of GeoCities Common Stock, by operation of law or
otherwise, such Shares shall be held subject to all of the terms and provisions
of this Voting Agreement.  Without limiting the foregoing, Stockholder
specifically agrees that the obligations of Stockholder hereunder shall not be
terminated by operation of law, whether by death or incapacity of Stockholder or
otherwise.

          4.5   ENTIRE AGREEMENT.  This Voting Agreement together with the
Affiliates Agreements, in the form attached as EXHIBIT B to the Merger
Agreement, if and to the extent entered into by Stockholder and Yahoo!,
constitutes the entire agreement among Yahoo! and Stockholder with respect to
the subject matter hereof and supersedes all prior agreements and
understandings, both written and oral, among Yahoo! and Stockholder with respect
to the subject matter hereof.

          4.6   CAPTIONS AND COUNTERPARTS.  The captions in this Voting
Agreement are for convenience only and shall not be considered a part of or
affect the construction or interpretation of any provision of this Voting
Agreement.  This Voting Agreement may be executed in several counterparts, each
of which shall constitute one and the same instrument.

          4.7   AMENDMENT.  This Voting Agreement may not be amended except by
an instrument in writing signed by the parties hereto.

          4.8   WAIVERS.  Except as provided in this Voting Agreement, no
action taken pursuant to this Voting Agreement, including without limitation any
investigation by or on behalf of any party, shall be deemed to constitute a
waiver by the party taking such action of compliance with any representations,
warranties, covenants or agreements contained in this Voting Agreement.  The
waiver by any party hereto of a breach of any provision hereunder shall not
operate or be construed as a wavier of any prior or subsequent breach of the
same or any other provision hereunder.

          4.9   SEVERABILITY.  If any term or other provision of this Voting
Agreement is invalid, illegal or incapable of being enforced by any rule of law,
or public policy, all other conditions and provisions of this Voting Agreement
shall nevertheless remain in full force and effect.  Upon such determination
that any term or other provision is invalid, illegal or incapable of being
enforced, the parties hereto shall negotiate in good faith to modify this Voting
Agreement so as to effect the original intent of the parties as closely as
possible to the fullest extent permitted by applicable law in a mutually
acceptable manner in order that the terms of this Voting Agreement remain as
originally contemplated to the fullest extent possible.


                                         -5-


          4.10  NOTICES.  All notices and other communications given or made
pursuant hereto shall be in writing and shall be deemed to have been duly given
or made and shall be effective upon receipt, if delivered personally, upon
receipt of a transmission confirmation if sent by facsimile (with a confirming
copy sent by overnight courier) and on the next business day if sent by Federal
Express, United Parcel Service, Express Mail or other reputable overnight
courier to the parties at the following addresses (or at such other address for
a party as shall be specified by notice):

          If to Stockholder:    At the address set forth opposite Stockholder's
                                name on the signature page hereto

          With a copy to:       Brobeck, Phleger & Harrison LLP
                                38 Technology Drive
                                Irvine, California 92618
                                Attention:  Richard A. Fink
                                Telephone No.:  (949) 790-6300
                                Telecopy No.:  (949) 790-6301

          If to Yahoo!
          or Merger Sub:        Yahoo! Inc.
                                3420 Central Expressway
                                Santa Clara, California 95051
                                Attention:  Chief Executive Officer
                                Telephone No.:  (408) 731-3300
                                Telecopy No.:  (408) 731-3510

          with a copy at the same address to the attention of the General
          Counsel and Secretary and with a copy to:

                                Venture Law Group
                                A Professional Corporation
                                2800 Sand Hill Road
                                Menlo Park, California 94025
                                Attention:  Steven J. Tonsfeldt
                                Telephone No.: (650) 854-4488
                                Telecopy No.:  (650) 233-8386

          4.11  GOVERNING LAW.  This Voting Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware regardless of
the laws that might otherwise govern under applicable principles of conflicts of
law.

          4.12  DEFINITIONS.  Capitalized terms used and not defined herein
shall have the meaning set forth in the Merger Agreement.


                                         -6-


          4.13  OFFICERS AND DIRECTORS.  No person who is or becomes (during
the term hereof) a director or officer of the GeoCities makes any agreement or
understanding herein in his or her capacity as such director or officer, and
nothing herein will limit or affect, or give rise to any liability to
Stockholder by virtue of, any actions taken by any Stockholder in his or her
capacity as an officer or director of the GeoCities in exercising its rights
under the Merger Agreement.

          4.14  TREATMENT OF SHARES.  If for any reason Stockholder shall be
prohibited from selling the shares of Yahoo! Common Stock to be received by
Stockholder in the Merger under the Registration Statement to be filed by Yahoo!
in connection with the Merger, Yahoo! agrees that it shall grant to Stockholder
registration rights that are consistent with those registration rights granted
by Yahoo! to stockholders of corporations acquired by Yahoo! in 1998 in
stock-for-stock merger transactions.

          4.15  INTERPRETATION.  The parties have participated jointly in the
negotiation of this Voting Agreement.  In the event that an ambiguity or
question of intent or interpretation arises, this Voting Agreement shall be
construed as if drafted jointly by the parties, and no presumption or burden of
proof shall arise favoring or disfavoring any party by virtue of the authorship
of the provisions of this Voting Agreement.


                              [SIGNATURE PAGE TO FOLLOW]







                                         -7-


     IN WITNESS WHEREOF, each of the parties hereto have caused this Voting
Agreement to be duly executed as of the date first written above.


                                YAHOO! INC.

                                By:  /s/ Timothy K. Koogle
                                     ---------------------------------------

                                Name: Timothy K. Koogle
                                      --------------------------------------

                                Title: CHAIRMAN AND CHIEF EXECUTIVE OFFICER
                                       -------------------------------------

                                STOCKHOLDER


                                By:  /s/ Steven S. Murray
                                     ---------------------------------------

                                Name: Steven S. Murray
                                      --------------------------------------

                                Title: Treasurer
                                       -------------------------------------

                                Address: 10 Langely Rd
                                         -----------------------------------

                                          Newton, MA  02459
                                         -----------------------------------

Number of Shares of GeoCities
Common Stock owned:  7,056,086
                    ------------------

Number of Shares of GeoCities
Common Stock as to which options
issued to Stockholder are
exercisable:
             -------------------------


                               ****VOTING AGREEMENT****