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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 FORM 20-F/A
 (Amendment No. 1)
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    REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT
OF 1934
 OR
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    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the
fiscal year ended December 31, 2008
 OR
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    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from  to
 OR
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    SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF
1934
 Date of event requiring this shell company report
 Commission file number 000-30698
 SINA CORPORATION
 (Exact name of Registrant as specified in its charter)
 Cayman Islands  (Jurisdiction of incorporation or organization)
 Room 1802, United Plaza
1468 Nan Jing Road West
Shanghai 200040, China  (Address of principal executive offices)
 Contact Person: Chief Financial Officer
Phone: +8610 8262 8888
Facsimile: +8610 8260 7166
Address: 20/F Beijing Ideal International Plaza
No. 58 Northwest 4th Ring Road
Haidian District, Beijing, 100080, Peoples Republic of China  (name, telephone, e-mail and/or facsimile number and address of company contact person)
 Securities registered or to be registered pursuant to Section 12(b) of the Act.
 Title of each class
    
    Name of each exchange on which registeredOrdinary Shares, $0.133 par value 
Ordinary Shares Purchase Rights
    
    The NASDAQ Stock Market LLC (NASDAQ Global Select Market)
 Securities registered or to be registered pursuant to Section 12(g) of the Act.
 Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act.
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  þ  Large accelerated filer   
    o Accelerated filer
    o Non-accelerated filer
    o Smaller reporting company(Do not check if a smaller reporting company)
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TABLE OF CONTENTS
 EXPLANATORY NOTE
    
    
    3SIGNATURE
    
    
    4Item 19. Exhibits
    
    
    5EX-4.42EX-12.1EX-12.2EX-13.1EX-13.2
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EXPLANATORY NOTE
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SIGNATURES
  SINA CorporationDate: September 18, 2009
    By:
    /s/ Charles ChaoCharles ChaoPresident and Chief Executive Officer 4




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Item 19. Exhibits
  ExhibitNumber
    
    Description1.1
    
    Amended and Restated Articles of Association of SINA Corporation (Filed as Exhibit 3.1 to the Companys
Annual Report on Form 10-K filed on March 16, 2005, and incorporated herein by reference).1.2
    
    Amended and Restated Memorandum of Association of SINA.com (currently known as SINA Corporation) (Filed as
Exhibit 3.1 to the Companys Annual Report on Form 10-K filed on March 16, 2005, and incorporated herein
by reference).2.1
    
    Form of Subordinated Note due July 15, 2023 (Filed as Exhibit 4.1 to the Companys Report on Form 10-Q for
the three month period ended June 30, 2003, and incorporated herein by reference).2.2
    
    Indenture, dated as of July 7, 2003, by and between the Company and the Bank of New York (Filed as Exhibit
4.2 to the Companys Report on Form 10-Q for the three month period ended June 30, 2003, and incorporated
herein by reference).2.3
    
    Registration Rights Agreement, dated as of July 7, 2003, by and between the Company and Credit Suisse
First Boston LLC (Filed as Exhibit 4.3 to the Companys Report on Form 10-Q for the three month period
ended June 30, 2003, and incorporated herein by reference).2.4
    
    Rights Agreement dated as of February 22, 2005 between SINA Corporation and American Stock Transfer &
Trust Company, as Rights Agent (Filed as Exhibit 4.1 to the Companys Report on Form 8-K filed on February
24, 2005, and incorporated herein by reference).4.1
    
    Form of Indemnification Agreement between SINA.com and each of its officers and directors (Filed as
Exhibit 10.1 to the Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on
March 27, 2000, as amended, and incorporated herein by reference).4.2
    
    SRS International Ltd. 1997 Stock Option Plan and form of incentive stock option agreement (Filed as
Exhibit 10.2 to the Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on
March 27, 2000, as amended, and incorporated herein by reference).4.3
    
    Sinanet.com 1997 Stock Plan and form of stock option agreement (Filed as Exhibit 10.3 to the Companys
Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and
incorporated herein by reference).4.4
    
    Amended SINA.com 1999 Stock Plan and form of share option agreement (Filed as Exhibit 10.4 to the
Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as
amended, and incorporated herein by reference).4.5
    
    Form of share option agreement under the amended SINA.com 1999 Stock Plan (Filed as Exhibit 10.5 to the
Companys Annual Report on Form 10-K filed on March 16, 2005 and incorporated by reference herein).4.6
    
    1999 Directors Stock Option Plan (Filed as Exhibit 10.6 to the Companys Registration Statement on Form
F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated herein by
reference).4.7
    
    Form of nonstatutory stock option agreement under the 1999 Directors Stock Option Plan (Filed as Exhibit
10.6 to the Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27,
2000, as amended, and incorporated herein by reference).
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ExhibitNumber
    
    Description4.8
    
    SINA.com 1999 Executive Stock Plan (Filed as Exhibit 10.19 to the Companys Registration Statement on Form
F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated herein by
reference).4.9*
    
    Form Lease Agreement of Ideal International Plaza between the Registrants subsidiaries or VIEs and
Beijing Zhongwu Ideal Real Estate Development Co., Ltd. for the office located in Ideal International
Plaza, 58 North 4th Ring Road West, Haidian,, Beijing, PRC, and the list of the lease agreements.4.10
    
    Business Cooperation Agreement dated March 7, 2000 between Beijing SINA Internet Information Services Co.,
Ltd. and Beijing Stone Rich Sight Information Technology Co., Ltd. (currently known as Beijing SINA
Information Technology Co., Ltd.) (Filed as Exhibit 10.23 to the Companys Registration Statement on Form
F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated herein by
reference).4.11
    
    Equipment and Leased Line Transfer Agreement dated March 7, 2000 between Beijing SINA Internet Information
Services Co., Ltd. and Beijing Stone Rich Sight Information Technology Co., Ltd. (currently known as
Beijing SINA Information Technology Co., Ltd.) (Filed as Exhibit 10.23 to the Companys Registration
Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated
herein by reference).4.12
    
    Advertising Agency Agreement dated March 7, 2000 between Beijing SINA Internet Information Services Co.,
Ltd. and SINA.com (currently known as SINA Corporation) (Filed as Exhibit 10.26 to the Companys
Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and
incorporated herein by reference).4.13
    
    Advertisement Production and Technical Service Agreement dated March 7, 2000 between Beijing Stone Rich
Sight Information Technology Co., Ltd. (currently known as Beijing SINA Information Technology Co., Ltd.)
and Beijing SINA Interactive Advertising Co. Ltd (Filed as Exhibit 10.27 to the Companys Registration
Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated
herein by reference).4.14
    
    Advertising Publication and Cooperation Agreement dated March 7, 2000 between Beijing SINA Internet
Information Services Co., Ltd. and Beijing SINA Interactive Advertising Co., Ltd (Filed as Exhibit 10.28
to the Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000,
as amended, and incorporated herein by reference).4.15
    
    Amendment to Advertising Agency Agreement dated April 1, 2000 between Beijing SINA Interactive Advertising
Co., Ltd. and SINA.com (currently known as SINA Corporation) (Filed as Exhibit 10.37 to the Companys
Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and
incorporated herein by reference).4.16
    
    Amendment to Advertisement Publication and Cooperation Agreement dated April 1, 2000 between Beijing SINA
Interactive Advertising Co., Ltd. and Beijing SINA Internet Information Services Co., Ltd (Filed as
Exhibit 10.38 to the Companys Registration Statement on Form F-1, Registration No. 333-11718, filed on
March 27, 2000, as amended, and incorporated herein by reference).4.17
    
    Amendment to Advertising Production and Technical Service Agreement dated April 1, 2000 between Beijing
Stone Rich Sight Information Technology Co., Ltd. (currently known as Beijing SINA Information Technology
Co., Ltd.) and Beijing SINA Interactive Advertising Co., Ltd (Filed as Exhibit 10.39 to the Companys
Registration Statement on Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and
incorporated herein by reference).4.18
    
    E-Commerce Cooperation Agreement dated April 1, 2000 between Beijing Stone Rich Sight Information
Technology Co., Ltd. (currently known as Beijing SINA Information Technology Co., Ltd.) and Beijing SINA
Internet Information Services Co., Ltd (Filed as Exhibit 10.40 to the Companys Registration Statement on
Form F-1, Registration No. 333-11718, filed on March 27, 2000, as amended, and incorporated herein by
reference).4.19*
    
    Share Pledge Agreements (18 agreements in total) between SINA.com Technology (China) Co., Ltd. (a
subsidiary of the Company) and certain employees of the Company in relation to significant Variable
Interest Entities controlled by the Company.4.20*
    
    Loan Agreements (18 agreements in total) between Sina.com Technology (China) Co., Ltd (a subsidiary of the
Company) and certain employees of the Company for funding significant Variable Interest Entities
controlled by the Company.4.21*
    
    Agreements on Authorization to Exercise Shareholders Voting Power (18 agreements in total) between
Sina.com Technology (China) Co., Ltd (a subsidiary of the Company) and certain employees of the Company in
relation to significant Variable Interest Entities controlled by the Company.4.22*
    
    Translation of Technical Services Agreement dated January 1, 2008 between Beijing New Media Information
Technology Co., Ltd. and Guangzhou Media Message Technologies Inc.4.23*
    
    Translation of Internet Advertisement Publishing Technical Services Agreement dated January 1, 2008
between SINA.com Technology (China) Co., Ltd and Beijing SINA Internet Information Services Co., Ltd.
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ExhibitNumber
    
    Description4.24*
    
    Translation of Technical Services Agreement dated January 1, 2008 between Beijing New Media Information
Technology Co., Ltd. and Shenzhen Wang Xing Technology Co., Ltd.4.25*
    
    Translation of Mobile Value Added Technical Services Agreement dated January 1, 2008 between SINA.com
Technology (China) Co., Ltd. and Beijing SINA Internet Information Services Co., Ltd.4.26*
    
    Translation of Internet Advertisement Publishing Technical Services Agreement dated January 1, 2008
between SINA.com Technology (China) Co., Ltd. and Beijing SINA Infinity Advertising Co., Ltd.4.27
    
    Change of Control Agreement dated February 1, 2001 with Charles Chao (Filed as Exhibit 10.48 to the
Companys Report on Form 10-Q for the three month period ended March 31, 2001, and incorporated herein by
reference).4.28
    
    Employment Agreement dated July 31, 2006 between Charles Guowei Chao and SINA Corporation (Filed as
Exhibit 10.1 to the Companys Report on Form 10-Q for the three month period ended September 30, 2006, and
incorporated herein by reference).4.29
    
    Stock Purchase Agreement dated February 24, 2004, among SINA, Crillion, the shareholders of Crillion
listed on Part I of Exhibit A of the Stock Purchase Agreement and the individuals listed on Part II of
Exhibit A of the Stock Purchase Agreement (Filed as Exhibit 2.1 to the Companys Report on Form 8-K filed
on April 7, 2004, and incorporated herein by reference).4.30
    
    Amendment Agreement dated March 23, 2004, among SINA, Crillion, the shareholders of Crillion listed on
Part I of Exhibit A of the Stock Purchase Agreement and the individuals listed on Part II of Exhibit A of
the Stock Purchase Agreement (Filed as Exhibit 2.2 to the Companys Report on Form 8-K filed on April 7,
2004, and incorporated herein by reference).4.31
    
    Equity Transfer Agreement dated February 24, 2004, among the individuals listed on Schedule A attached to
the Equity Transfer Agreement, Shenzhen Wang Xing Technology Co., Ltd., a limited liability company
organized and existing under the laws of the Peoples Republic of China, and the individuals listed on
Schedule B attached to the Equity Transfer Agreement (Filed as Exhibit 2.3 to the Companys Report on Form
8-K filed on April 7, 2004, and incorporated herein by reference).4.32
    
    Stock Purchase Agreement dated July 1, 2004 among SINA Corporation, Davidhill Capital Inc., the
shareholders of Davidhill Capital Inc. listed on Part I of Exhibit A to such agreement, and the company
and individuals listed on Part II of Exhibit A to such agreement. (Filed as Exhibit 2.1 to the Companys
Report on Form 8-K filed on October 22, 2004, and incorporated herein by reference).4.33
    
    Amendment Agreement dated October 13, 2004 among SINA Corporation, Davidhill Capital Inc., the
shareholders of Davidhill Capital Inc. listed on Part I of Exhibit A to the Stock Purchase Agreement, and
the company and individuals listed on Part II of Exhibit A to the Stock Purchase Agreement. (Filed as
Exhibit 2.2 to the Companys Report on Form 8-K filed on October 22, 2004, and incorporated herein by
reference).4.34
    
    Asset Purchase Agreement dated July 1, 2004 by and between Guiyang Longmaster Information Technology Co.,
Ltd. and Beijing Davidhill Internet Technology Service Co., Ltd. (Filed as Exhibit 2.3 to the Companys
Report on Form 8-K filed on October 22, 2004, and incorporated herein by reference).4.35
    
    2007 Share Incentive Plan (Filed as Exhibit 4.2 to the Companys Report on Form S-8 filed on July 26,
2007, and incorporated herein by reference).4.36
    
    Form of share option agreement for non-employee directors under the 2007 Share Incentive Plan (Filed as
Exhibit 4.44 to the Companys Report on Form 20-F filed on June 30, 2008, and incorporated herein by
reference).4.37
    
    Form of restricted share unit agreement for existing service providers under the 2007 Share Incentive Plan
(Filed as Exhibit 4.45 to the Companys Report on Form 20-F filed on June 30, 2008, and incorporated
herein by reference).4.38
    
    Form of performance restricted share unit agreement under the 2007 Share Incentive Plan (Filed as Exhibit
4.46 to the Companys Report on Form 20-F filed on June 30, 2008, and incorporated herein by reference).4.39
    
    Form of share option agreement for existing service providers under the 2007 Share Incentive Plan (Filed
as Exhibit 4.47 to the Companys Report on Form 20-F filed on June 30, 2008, and incorporated herein by
reference).4.40*
    
    Form of restricted share unit agreement for existing service providers under the 2007 Share Incentive Plan.4.41*
    
    Form of restricted share unit agreement for existing service providers under the 2007 Share Incentive Plan.4.42**
    
    Asset Purchase Agreement dated as of December 22, 2008 by and between Focus Media Holding Limited and the
Company8.1*
    
    List of Subsidiaries.12.1**
    
    Certificate of Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a)
as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
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ExhibitNumber
    
    Description12.2**
    
    Certificate of Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a)
as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.13.1**
    
    Certificate of Chief Executive Officer pursuant to 18 U.S.C. section 1350.13.2**
    
    Certificate of Chief Financial Officer pursuant to 18 U.S.C. section 1350.15.1*
    
    Consent of Independent Registered Public Accounting Firm.15.2*
    
    Consent of Jun He Law offices.
 
 *
    
    Filed with the Companys Annual Report on Form 20-F for the fiscal year ended December 31,
2008 filed on June 29, 2009.**
    
    Filed herewith.
    
    Confidential treatment requested for certain portions of this Exhibit pursuant to Rule 24b-2
promulgated under the Securities Exchange Act, which portions are omitted and filed separately
with the Securities and Exchange Commission. 8