content: <PAGE>
   
                         SECURITIES AND EXCHANGE COMMISSION
                                          
                               Washington, D.C. 20549
  
                                      FORM 8-K
                                          
    CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 
                                    ACT OF 1934
  
    DATE OF REPORT  (DATE OF EARLIEST EVENT REPORTED): October 7, 1997
  
  
                                 _________________
  
  
                                    YAHOO! INC.
                                          
               (Exact name of registrant as specified in its charter)
  
                                      0-26822
                              (Commission File Number)
  
       California                                       77-0398689
       (State or other jurisdiction of                  (I.R.S. Employer 
       incorporation or organization)                   Identification No.)
       
  
  
                         3400 Central Expressway, Suite 201
                           Santa Clara, California 95051
              (Address of principal executive offices, with zip code)
  
  
                                   (408) 731-3300
                (Registrant's telephone number, including area code)
  <PAGE>
   
  ITEM 5.  OTHER EVENTS
  
       On October 7, 1997, Yahoo! Inc., a California corporation ("Yahoo!"),
  entered into an Agreement and Plan of Reorganization ("Agreement") by and
  among Yahoo!, ST Acquisition Corporation, a California corporation and a
  wholly-owned subsidiary of Yahoo!, and Four11 Corporation, a California
  corporation ("Four11"). In the merger, all outstanding shares of Four11 common
  stock, Four11 preferred stock, options to purchase Four11 stock, and warrants
  to purchase Four11 stock will be converted into an aggregate of 1,654,099
  shares and options and warrants to purchase shares of Yahoo! common stock. All
  outstanding options to purchase Four11 stock will be assumed by Yahoo! and
  converted into options to purchase Yahoo! common stock, and all outstanding
  warrants to purchase Four11 stock will be assumed by Yahoo! and converted into
  warrants to purchase Yahoo! common stock, in each case with such adjustments
  to the number of shares subject to such options and warrants and to the
  exercise prices thereunder as shall be appropriate to reflect the appropriate
  conversion ratios determined pursuant to terms of the Agreement. It is
  intended that the transaction qualify as a tax-free reorganization for federal
  income tax purposes and that the merger be accounted for on a pooling of
  interests basis.
  
       The merger is subject to various conditions, including the consent of
  holders of (i) a majority of the shares of Four11 Common Stock entitled to vote,
  (ii) a majority of the outstanding shares of Four11 Series A Preferred Stock
  entitled to vote, and (iii) a majority of the outstanding shares of Four11
  Series B Preferred Stock entitled to vote, each voting as a separate class.  In
  connection with the execution of the Agreement, Yahoo! has entered into
  agreements with Michael Santullo, Larry Drebes, Draper Fisher Associates Fund
  III, L.P., Draper Fisher Partners L.L.C., 4C Ventures, L.P., and Labrador
  Ventures II, L.P. in which they have agreed to vote their shares of Four11
  capital stock in favor of the merger and have granted Yahoo! proxies to vote 
  their shares at any Four11 shareholder meeting convened to consider the
  merger. These shareholders own approximately 97% of the outstanding shares of
  Four11's Series A Preferred Stock, 75% of the outstanding shares of Four11's
  Series B Preferred Stock, and 86% of the outstanding shares of Four11's Common
  Stock. In addition, Four11 may terminate the Agreement prior to the effective 
  time of the merger if the average closing sales price of Yahoo!'s common stock
  for the five trading days immediately preceding the date on which all closing 
  conditions are met shall be less than $35.97 per share
  
        Also, in connection with the execution of the Agreement certain 
  employees of Four11 entered into Noncompetition Agreements with Yahoo! The 
  effectiveness of these Noncompetition Agreements is contingent upon the 
  consummation of the merger.
  
  ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.
  
       (c)  EXHIBITS.
  
   
  <TABLE>
  <C>                                 <S>
                                 2.1  Agreement and Plan of Reorganization dated as of October 7,
                                      1997, by and among Yahoo! Inc., ST Acquisition Corporation,
                                      and Four11 Corporation.
  </TABLE>
   
  <PAGE>
   
                                     SIGNATURES
                                          
  
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  registrant has duly caused this report to be signed on its behalf by the
  undersigned thereunto duly authorized.
  
  
       YAHOO! INC.
  
  
  Date:  October 10, 1997  By:     /s/ Gary Valenzuela
                                   Gary Valenzuela
                                   Vice President, Finance and Administration, and
                                   Chief Financial Officer
                                   (Principal Financial Officer)
  <PAGE>
   
                                    YAHOO! INC.
  
                                 INDEX TO EXHIBITS
                                          
  
  
  
        Exhibit Number                            Description
        --------------                            -----------
  
             2.1              Agreement and Plan of Reorganization dated as of
                              October 7, 1997, by and among Yahoo! Inc., ST
                              Acquisition Corporation, and Four11 Corporation.
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text: SECURITIES AND EXCHANGE COMMISSION
                                          
                               Washington, D.C. 20549
  
                                      FORM 8-K
                                          
    CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 
                                    ACT OF 1934
  
    DATE OF REPORT  (DATE OF EARLIEST EVENT REPORTED): October 7, 1997
  
                                 _________________
  
                                    YAHOO! INC.
                                          
               (Exact name of registrant as specified in its charter)
  
                                      0-26822
                              (Commission File Number)
  
       California                                       77-0398689
       (State or other jurisdiction of                  (I.R.S. Employer 
       incorporation or organization)                   Identification No.)
       
  
                         3400 Central Expressway, Suite 201
                           Santa Clara, California 95051
              (Address of principal executive offices, with zip code)
  
                                   (408) 731-3300
                (Registrant's telephone number, including area code)
  ITEM 5.  OTHER EVENTS
  
       On October 7, 1997, Yahoo! Inc., a California corporation ("Yahoo!"),
  entered into an Agreement and Plan of Reorganization ("Agreement") by and
  among Yahoo!, ST Acquisition Corporation, a California corporation and a
  wholly-owned subsidiary of Yahoo!, and Four11 Corporation, a California
  corporation ("Four11"). In the merger, all outstanding shares of Four11 common
  stock, Four11 preferred stock, options to purchase Four11 stock, and warrants
  to purchase Four11 stock will be converted into an aggregate of 1,654,099
  shares and options and warrants to purchase shares of Yahoo! common stock. All
  outstanding options to purchase Four11 stock will be assumed by Yahoo! and
  converted into options to purchase Yahoo! common stock, and all outstanding
  warrants to purchase Four11 stock will be assumed by Yahoo! and converted into
  warrants to purchase Yahoo! common stock, in each case with such adjustments
  to the number of shares subject to such options and warrants and to the
  exercise prices thereunder as shall be appropriate to reflect the appropriate
  conversion ratios determined pursuant to terms of the Agreement. It is
  intended that the transaction qualify as a tax-free reorganization for federal
  income tax purposes and that the merger be accounted for on a pooling of
  interests basis.
  
       The merger is subject to various conditions, including the consent of
  holders of (i) a majority of the shares of Four11 Common Stock entitled to vote,
  (ii) a majority of the outstanding shares of Four11 Series A Preferred Stock
  entitled to vote, and (iii) a majority of the outstanding shares of Four11
  Series B Preferred Stock entitled to vote, each voting as a separate class.  In
  connection with the execution of the Agreement, Yahoo! has entered into
  agreements with Michael Santullo, Larry Drebes, Draper Fisher Associates Fund
  III, L.P., Draper Fisher Partners L.L.C., 4C Ventures, L.P., and Labrador
  Ventures II, L.P. in which they have agreed to vote their shares of Four11
  capital stock in favor of the merger and have granted Yahoo! proxies to vote 
  their shares at any Four11 shareholder meeting convened to consider the
  merger. These shareholders own approximately 97% of the outstanding shares of
  Four11's Series A Preferred Stock, 75% of the outstanding shares of Four11's
  Series B Preferred Stock, and 86% of the outstanding shares of Four11's Common
  Stock. In addition, Four11 may terminate the Agreement prior to the effective 
  time of the merger if the average closing sales price of Yahoo!'s common stock
  for the five trading days immediately preceding the date on which all closing 
  conditions are met shall be less than $35.97 per share
  
        Also, in connection with the execution of the Agreement certain 
  employees of Four11 entered into Noncompetition Agreements with Yahoo! The 
  effectiveness of these Noncompetition Agreements is contingent upon the 
  consummation of the merger.
  
  ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS.
  
       (c)  EXHIBITS.
  2.1  Agreement and Plan of Reorganization dated as of October 7,
                                      1997, by and among Yahoo! Inc., ST Acquisition Corporation,
                                      and Four11 Corporation.
  SIGNATURES
                                          
  
  Pursuant to the requirements of the Securities Exchange Act of 1934, the
  registrant has duly caused this report to be signed on its behalf by the
  undersigned thereunto duly authorized.
  
       YAHOO! INC.
  
  Date:  October 10, 1997  By:     /s/ Gary Valenzuela
                                   Gary Valenzuela
                                   Vice President, Finance and Administration, and
                                   Chief Financial Officer
                                   (Principal Financial Officer)
  YAHOO! INC.
  
                                 INDEX TO EXHIBITS
                                          
  
        Exhibit Number                            Description
        --------------                            -----------
  
             2.1              Agreement and Plan of Reorganization dated as of
                              October 7, 1997, by and among Yahoo! Inc., ST
                              Acquisition Corporation, and Four11 Corporation.