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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 
  Form 10-K/A
 (Amendment No. 3)
 
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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, 2006
 OR
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    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 Commission File Number 000-30698
 SINA CORPORATION
 (Exact Name of Registrant as specified in its charter)
 Cayman Islands
    
    N/A(State or other jurisdiction of
    
    (I.R.S. Employer Identification Number)Incorporation or organization)
 Room 1802, United Plaza
1468 Nan Jing Road West
Shanghai 200040, China
 (Address, including zip code, and telephone number, including area code, of Registrants principal executive offices)
 Securities registered pursuant to Section 12(b) of the Act:
Ordinary Share, $0.133 par value
Ordinary Share Purchase Rights
 Securities registered pursuant to Section 12(g) of the Act:
None
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SINA CORPORATION
 INDEX
 Page No.EXPLANATORY NOTE
    
    
    3PART III.
    
    
    3Item 13. Certain Relationships and Related Transactions
    
    
    3PART IV.
    
    
    5Item 15. Exhibits and Financial Statement Schedules
    
    
    5SIGNATURES
    
    
    6EXHIBIT INDEXEXHIBIT 31.1EXHIBIT 31.2EXHIBIT 32.1EXHIBIT 32.2
  2




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EXPLANATORY NOTE
  
    
    Amend and restate the section titled Director Independence to disclose the
reason for the appointment of Mr. Yan Wang, who is not independent as defined under
Nasdaq Marketplace Rule 4200(a)(15), to our Compensation Committee; and
    
    Amend and restate the section titled Indebtedness of Management to
disclose business loans made to certain executive officers who were promoted in February
2007 for the purpose of funding the capital investment in certain of the registrants
significant domestic Variable Interest Entities;
  
    
    Update the certifications of certain executive officers as of the date of
this amendment in accordance with Rule 12b-15 under the Securities Exchange Act of 1934,
as amended; and
    
    Incorporate by reference certain exhibits filed with the registrants annual
report on Form 10-K for the fiscal year ended December 31, 2006 filed on March 1, 2007
(Original Form 10-K).
 Amendment No. 1 Amendment No. 2
  
    
    We, us, our, SINA and the Company refer to SINA Corporation
    
    Board of Directors or Board means our Board of Directors
    
    SEC means the Securities and Exchange Commission
 
 PART III
 
 Item 13. Certain Relationships and Related Transactions
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DIRECTOR INDEPENDENCE
   Indebtedness of Management
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Indemnification Agreements
  Registration Rights Agreements
  
 PART IV
 
 Item 15. Exhibits and Financial Statement Schedules
   5




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SIGNATURES
  SINA CorporationBy:
    /s/ CHARLES CHAOCharles ChaoPresident and Chief Executive Officer  6




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EXHIBIT INDEX
 ExhibitNumber
    
    Description2.1
    
    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).2.2
    
    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).2.3
    
    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).2.4
    
    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).2.5
    
    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).2.6
    
    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).3.1
    
    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 by reference herein).3.2
    
    Amended and Restated Memorandum of Association of SINA.com (Filed as
Exhibit 3.1 to the Companys Annual Report on Form 10-K filed on March
16, 2005 and incorporated by reference herein).4.1
    
    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).4.2
    
    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).4.3
    
    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).4.4
    
    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).10.1#
    
    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).10.2#
    
    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).




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ExhibitNumber
    
    Description10.3#
    
    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).10.4#
    
    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).10.5#
    
    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).10.6#
    
    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).10.7#
    
    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).10.8#
    
    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).10.9
    
    Lease Agreement of Ideal International Plaza dated April 16, 2004 between
SINA Information Technology Company Limited and Beijing Zhongwu Ideal
Real Estate Development Co., Ltd. for the office located in Suite 01 
12, Floor 20, Ideal International Plaza, 2 Zhongguancun High-Tech Square,
Beijing, PRC (Filed as Exhibit 10.1 to the Companys Report on Form 10-Q
for the three month period ended June 30, 2004, and incorporated herein
by reference).10.10
    
    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, 2 Zhongguancun High-Tech Square, Beijing, PRC, and the list of the
lease agreements (Filed as Exhibit 10.1 to the Companys Report on Form
10-Q for the three month period ended September 30, 2004, and
incorporated herein by reference).10.11
    
    Business Cooperation Agreement dated March 7, 2000 between Beijing SINA
Internet Information Services Co., Ltd. and BSRS (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).10.12
    
    Equipment and Leased Line Transfer Agreement dated March 7, 2000 between
Beijing SINA Internet Information Services Co., Ltd. and BSRS (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).10.13
    
    Advertising Agency Agreement dated March 7, 2000 between Beijing SINA
Internet Information Services Co., Ltd. and SINA.com (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).10.14
    
    Advertisement Production and Technical Service Agreement dated March 7,
2000 between Beijing Stone Rich Sight 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).10.15
    
    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).10.16
    
    Amendment to Advertising Agency Agreement dated April 1, 2000 between
Beijing SINA Interactive Advertising Co., Ltd. and SINA.com (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).10.17
    
    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).




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ExhibitNumber
    
    Description10.18
    
    Amendment to Advertising Production and Technical Service Agreement dated
April 1, 2000 between Beijing Stone Rich Sight 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).10.19
    
    E-Commerce Cooperation Agreement dated April 1, 2000 between Beijing
Stone Rich Sight 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).10.20
    
    Agreement on Short Message Service Cooperation dated November 12, 2002
between Guangzhou Media Message Technologies Inc. and Guangdong Mobile
Communications Corporation (Filed as Exhibit 10.37 to the Companys
Report on Form 10-K for the year ended December 31, 2003, as amended, and
incorporated herein by reference).10.21
    
    Monternet Short Message Cooperation Agreement dated April 28, 2003
between Beijing SINA Internet Information Services Co., Ltd. and Beijing
Mobile Communications Corporation (Filed as Exhibit 10.38 to the
Companys Report on Form 10-K for the year ended December 31, 2003, as
amended, and incorporated herein by reference).10.22
    
    Form of Loan Agreement between Beijing Sina Information Technology Co.,
Ltd (a subsidiary of the Company) and the Companys employees for funding
the Variable Interest Entities controlled by the Company (Filed as
Exhibit 10.39 to the Companys Report on Form 10-K for the year ended
December 31, 2003, as amended, and incorporated herein by reference).10.23
    
    Form of Agreement on Authorization to Exercise Shareholders Voting Power
between Beijing Sina Information Technology Co., Ltd (a subsidiary of the
Company) and the Companys employees in relation to Variable Interest
Entities controlled by the Company (Filed as Exhibit 10.40 to the
Companys Report on Form 10-K for the year ended December 31, 2003, as
amended, and incorporated herein by reference).10.24
    
    Technical Services Agreement dated September 1, 2003 between Beijing New
Media Information Technology Co., Ltd. and Guangzhou Media Message
Technologies Inc (Filed as Exhibit 10.41 to the Companys Report on Form
10-K for the year ended December 31, 2003, as amended, and incorporated
herein by reference).10.25
    
    Technical Cooperation Agreement dated September 28, 2003 between Beijing
New Media Information Technology Co., Ltd. and Guangzhou Media Message
Technologies Inc (Filed as Exhibit 10.42 to the Companys Report on Form
10-K for the year ended December 31, 2003, as amended, and incorporated
herein by reference).10.26
    
    Technical Services Agreement dated September 1, 2003 between Beijing New
Media Information Technology Co., Ltd. and Guangdong SINA Internet
Information Services Co., Ltd (Filed as Exhibit 10.43 to the Companys
Report on Form 10-K for the year ended December 31, 2003, as amended, and
incorporated herein by reference).10.27
    
    Technical Services Agreement dated January 10, 2003 between
Star-Village.com (Beijing) Internet Technology Limited and Guangzhou
Media Message Technologies Inc (Filed as Exhibit 10.44 to the Companys
Report on Form 10-K for the year ended December 31, 2003, as amended, and
incorporated herein by reference).10.28
    
    Technical Services Agreement dated January 1, 2003 between Beijing SINA
Internet Technology Services Co., Ltd. and Beijing SINA Internet
Information Services Co., Ltd (Filed as Exhibit 10.45 to the Companys
Report on Form 10-K for the year ended December 31, 2003, as amended, and
incorporated herein by reference).10.29
    
    Technical Services Agreement dated February 24, 2004 between Beijing New
Media Information Technology Co., Ltd. and Shenzhen Wang Xing Technology
Co., Ltd (Filed as Exhibit 10.1 to the Companys Report on Form 10-Q for
the three month period ended March 31, 2004, and incorporated herein by
reference).10.30
    
    Translation of Monternet Short Message Cooperation Agreement dated March
23, 2004 between Beijing SINA Internet Information Services Co., Ltd. and
Guangdong Mobile Communications Corporation (Filed as Exhibit 10.48 to
the Companys Annual Report on Form 10-K filed on March 16, 2005 and
incorporated by reference herein).10.31
    
    Translation of Technical Services Agreement dated January 1, 2005 between
SINA.com Technology (China) Co., Ltd. and Beijing SINA Infinity
Advertising Co., Ltd. (Filed as Exhibit 10.48 to the Companys Report on
Form 10-K for the year ended December 31, 2005, and incorporated herein
by reference).10.32
    
    Translation of Technical Services Agreement dated January 1, 2005 between
SINA.com Technology (China) Co., Ltd. and Beijing SINA Internet
Information Services Co., Ltd. (Filed as Exhibit 10.49 to the Companys
Report on Form 10-K for the year ended December 31, 2005, and
incorporated herein by reference).10.33#
    
    Change of Control Agreement dated November 27, 2000 with Yan Wang (Filed
as Exhibit 10.47 to the Companys Report on Form 10-Q for the three month
period ended December 31, 2000, and incorporated herein by reference).




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ExhibitNumber
    
    Description10.34#
    
    Change of Control Agreement dated November 27, 2000 with Hurst Lin (Filed
as Exhibit 10.46 to the Companys Report on Form 10-Q for the three month
period ended December 31, 2000, and incorporated herein by reference).10.35#
    
    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).10.36#
    
    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).21.1*
    
    List of Subsidiaries.23.1*
    
    Consent of Independent Registered Public Accounting Firm.23.2*
    
    Consent of Jun He Law offices.24.1*
    
    Power of Attorney (appears on the signature page of this report).31.1**
    
    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 2002.31.2**
    
    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 2002.32.1**
    
    Certificate of Chief Executive Officer pursuant to 18 U.S.C. section 1350.32.2**
    
    Certificate of Chief Financial Officer pursuant to 18 U.S.C. section 1350.
 
 *
    
    Filed with the Companys Report on Form 10-K for the fiscal year ended December 31, 2006 (which
report was filed on March 1, 2007).**
    
    Filed herewith.#
    
    Indicates a management contract or compensatory plan or arrangement, as required by Item 15(a)3.