EXHIBIT 4.21
 Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as IAD Company) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide IAD Companys management policy and investment plan;2)
    
    to elect and change IAD Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change IAD Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of IAD Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve IAD Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve IAD Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on IAD Companys increasing or decreasing registered capital;9)
    
    to make decision on IAD Companys issue of corporate bonds;10)
    
    to make decision on IAD Companys shareholder transferring his subscribed capital to the
persons other than IAD Companys shareholders;11)
    
    to make decision on IAD Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing IAD Companys business scope;13)
    
    to revise IAD Companys articles of association;14)
    
    to decide to change the contents or nature of IAD Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in IAD Companys name;16)
    
    to decide to sell IAD Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against IAD Companys any assets (including both
tangible and intangible
 1




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##### 



assets)
    
    whatsoever such security is for;18)
    
    to decide to assign the contracts signed by IAD Company to any third party; and19)
    
    to decide any other rights that may materially affect IAD Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
  2




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##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as IAD Company) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide IAD Companys management policy and investment plan;2)
    
    to elect and change IAD Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change IAD Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of IAD Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve IAD Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve IAD Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on IAD Companys increasing or decreasing registered capital;9)
    
    to make decision on IAD Companys issue of corporate bonds;10)
    
    to make decision on IAD Companys shareholder transferring his subscribed capital to the
persons other than IAD Companys shareholders;11)
    
    to make decision on IAD Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing IAD Companys business scope;13)
    
    to revise IAD Companys articles of association;14)
    
    to decide to change the contents or nature of IAD Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in IAD Companys name;16)
    
    to decide to sell IAD Companys any assets or rights to any third party, including but not
limited to intellectual property;
 1




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##### 



17)
    
    to decide to set up any security rights against IAD Companys any assets (including both
tangible and intangible
assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by IAD Company to any third party; and19)
    
    to decide any other rights that may materially affect IAD Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
 2




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##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
  3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as IAD Company) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide IAD Companys management policy and investment plan;2)
    
    to elect and change IAD Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change IAD Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of IAD Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve IAD Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve IAD Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on IAD Companys increasing or decreasing registered capital;9)
    
    to make decision on IAD Companys issue of corporate bonds;10)
    
    to make decision on IAD Companys shareholder transferring his subscribed capital to the
persons other than IAD Companys shareholders;11)
    
    to make decision on IAD Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing IAD Companys business scope;13)
    
    to revise IAD Companys articles of association;14)
    
    to decide to change the contents or nature of IAD Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in IAD Companys name;16)
    
    to decide to sell IAD Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against IAD Companys any assets (including both
tangible and intangible
 1




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##### 



assets) whatsoever such security is for;
 18)
    
    to decide to assign the contracts signed by IAD Company to any third party; and19)
    
    to decide any other rights that may materially affect IAD Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
  2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as IAD Company) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide IAD Companys management policy and investment plan;2)
    
    to elect and change IAD Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change IAD Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of IAD Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve IAD Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve IAD Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on IAD Companys increasing or decreasing registered capital;9)
    
    to make decision on IAD Companys issue of corporate bonds;10)
    
    to make decision on IAD Companys shareholder transferring his subscribed capital to the
persons other than IAD Companys shareholders;11)
    
    to make decision on IAD Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing IAD Companys business scope;13)
    
    to revise IAD Companys articles of association;14)
    
    to decide to change the contents or nature of IAD Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in IAD Companys name;16)
    
    to decide to sell IAD Companys any assets or rights to any third party, including but not
limited to intellectual property;
 1




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##### 



17)
    
    to decide to set up any security rights against IAD Companys any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by IAD Company to any third party; and19)
    
    to decide any other rights that may materially affect IAD Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
 2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
  3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 20% of stock rights of Beijing Sina Infinity Advertising Co., Ltd.
(hereinafter referred to as IAD Company) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 200,000 Yuan to Sina Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of IAD Company; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide IAD Companys management policy and investment plan;2)
    
    to elect and change IAD Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change IAD Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of IAD Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve IAD Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve IAD Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on IAD Companys increasing or decreasing registered capital;9)
    
    to make decision on IAD Companys issue of corporate bonds;10)
    
    to make decision on IAD Companys shareholder transferring his subscribed capital to the
persons other than IAD Companys shareholders;11)
    
    to make decision on IAD Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing IAD Companys business scope;13)
    
    to revise IAD Companys articles of association;14)
    
    to decide to change the contents or nature of IAD Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in IAD Companys name;16)
    
    to decide to sell IAD Companys any assets or rights to any third party, including but not
limited to intellectual property;
 1




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##### 



17)
    
    to decide to set up any security rights against IAD Companys any assets (including both
tangible and intangible
assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by IAD Company to any third party; and19)
    
    to decide any other rights that may materially affect IAD Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
 2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
  3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 1.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as ICP Company) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 300,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide ICP Companys management policy and investment plan;2)
    
    to elect and change ICP Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change ICP Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of ICP Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve ICP Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve ICP Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on ICP Companys increasing or decreasing registered capital;9)
    
    to make decision on ICP Companys issue of corporate bonds;10)
    
    to make decision on ICP Companys shareholder transferring his subscribed capital to the
persons other than ICP Companys shareholders;11)
    
    to make decision on ICP Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing ICP Companys business scope;13)
    
    to revise ICP Companys articles of association;14)
    
    to decide to change the contents or nature of ICP Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in ICP Companys name;16)
    
    to decide to sell ICP Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against ICP Companys any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by ICP Company to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect ICP Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 22.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as ICP Company) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,500,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide ICP Companys management policy and investment plan;2)
    
    to elect and change ICP Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change ICP Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of ICP Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve ICP Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve ICP Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on ICP Companys increasing or decreasing registered capital;9)
    
    to make decision on ICP Companys issue of corporate bonds;10)
    
    to make decision on ICP Companys shareholder transferring his subscribed capital to the
persons other than ICP Companys shareholders;11)
    
    to make decision on ICP Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing ICP Companys business scope;13)
    
    to revise ICP Companys articles of association;14)
    
    to decide to change the contents or nature of ICP Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in ICP Companys name;16)
    
    to decide to sell ICP Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against ICP Companys any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by ICP Company to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect ICP Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 22.5% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as ICP Company) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,500,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide ICP Companys management policy and investment plan;2)
    
    to elect and change ICP Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change ICP Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of ICP Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve ICP Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve ICP Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on ICP Companys increasing or decreasing registered capital;9)
    
    to make decision on ICP Companys issue of corporate bonds;10)
    
    to make decision on ICP Companys shareholder transferring his subscribed capital to the
persons other than ICP Companys shareholders;11)
    
    to make decision on ICP Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing ICP Companys business scope;13)
    
    to revise ICP Companys articles of association;14)
    
    to decide to change the contents or nature of ICP Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in ICP Companys name;16)
    
    to decide to sell ICP Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against ICP Companys any assets (including both
tangible and intangible assets) whatsoever such security is for;
 1




---



##### 



18)
    
    to decide to assign the contracts signed by ICP Company to any third party; and19)
    
    to decide any other rights that may materially affect ICP Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
  2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
   3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 26.75% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as ICP Company) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 5,350,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide ICP Companys management policy and investment plan;2)
    
    to elect and change ICP Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change ICP Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of ICP Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve ICP Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve ICP Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on ICP Companys increasing or decreasing registered capital;9)
    
    to make decision on ICP Companys issue of corporate bonds;10)
    
    to make decision on ICP Companys shareholder transferring his subscribed capital to the
persons other than ICP Companys shareholders;11)
    
    to make decision on ICP Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing ICP Companys business scope;13)
    
    to revise ICP Companys articles of association;14)
    
    to decide to change the contents or nature of ICP Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in ICP Companys name;16)
    
    to decide to sell ICP Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against ICP Companys any assets (including both
tangible and intangible
 1




---



##### 



assets) whatsoever such security is for;
 18)
    
    to decide to assign the contracts signed by ICP Company to any third party; and19)
    
    to decide any other rights that may materially affect ICP Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
  2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
   3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 26.75% of stock rights of Beijing Sina Internet Information Service Co.,
Ltd. (hereinafter referred to as ICP Company) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 5,350,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of ICP Company; SINA COMPANY
is willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide ICP Companys management policy and investment plan;2)
    
    to elect and change ICP Companys directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change ICP Companys supervisors, and decide the matters regarding to
supervisors remuneration;4)
    
    to review and approve the reports of ICP Companys board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve ICP Companys annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve ICP Companys profit distribution plan and the plan to make good
deficits;8)
    
    to make decision on ICP Companys increasing or decreasing registered capital;9)
    
    to make decision on ICP Companys issue of corporate bonds;10)
    
    to make decision on ICP Companys shareholder transferring his subscribed capital to the
persons other than ICP Companys shareholders;11)
    
    to make decision on ICP Companys merger, separation, change of companys form, dissolution
and liquidation, etc.;12)
    
    to make decision on changing ICP Companys business scope;13)
    
    to revise ICP Companys articles of association;14)
    
    to decide to change the contents or nature of ICP Companys business;15)
    
    to decide to make a loan to any third party or incur any debts in ICP Companys name;16)
    
    to decide to sell ICP Companys any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against ICP Companys any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by ICP Company to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect ICP Companys rights, obligations,
assets or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 30% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as StarVI) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide StarVIs management policy and investment plan;2)
    
    to elect and change StarVIs directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change StarVIs supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of StarVIs board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve StarVIs annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve StarVIs profit distribution plan and the plan to make good deficits;8)
    
    to make decision on StarVIs increasing or decreasing registered capital;9)
    
    to make decision on StarVIs issue of corporate bonds;10)
    
    to make decision on StarVIs shareholder transferring his subscribed capital to the persons
other than StarVIs shareholders;11)
    
    to make decision on StarVIs merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing StarVIs business scope;13)
    
    to revise StarVIs articles of association;14)
    
    to decide to change the contents or nature of StarVIs business;15)
    
    to decide to make a loan to any third party or incur any debts in StarVIs name;16)
    
    to decide to sell StarVIs any assets or rights to any third party, including but not limited
to intellectual property;17)
    
    to decide to set up any security rights against StarVIs any assets (including both tangible
and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by StarVI to any third party; and19)
    
    to decide any other rights that may materially affect StarVIs rights, obligations, assets or
management matters.
 1




---



##### 



Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
   3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 30% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as StarVI) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide StarVIs management policy and investment plan;2)
    
    to elect and change StarVIs directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change StarVIs supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of StarVIs board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve StarVIs annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve StarVIs profit distribution plan and the plan to make good deficits;8)
    
    to make decision on StarVIs increasing or decreasing registered capital;9)
    
    to make decision on StarVIs issue of corporate bonds;10)
    
    to make decision on StarVIs shareholder transferring his subscribed capital to the persons
other than StarVIs shareholders;11)
    
    to make decision on StarVIs merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing StarVIs business scope;13)
    
    to revise StarVIs articles of association;14)
    
    to decide to change the contents or nature of StarVIs business;15)
    
    to decide to make a loan to any third party or incur any debts in StarVIs name;16)
    
    to decide to sell StarVIs any assets or rights to any third party, including but not limited
to intellectual property;17)
    
    to decide to set up any security rights against StarVIs any assets (including both tangible
and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by StarVI to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect StarVIs rights, obligations, assets or
management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    3




---



##### 



10. Miscellaneous
       Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 40% of stock rights of Beijing Star-Village Online Cultural Development
Co. Ltd. (hereinafter referred to as StarVI) on the date of signing of this Agreement; and
to hold above-mentioned stock rights, the Authorizer owns a debt of RMB 4,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of StarVI; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide StarVIs management policy and investment plan;2)
    
    to elect and change StarVIs directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change StarVIs supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of StarVIs board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve StarVIs annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve StarVIs profit distribution plan and the plan to make good deficits;8)
    
    to make decision on StarVIs increasing or decreasing registered capital;9)
    
    to make decision on StarVIs issue of corporate bonds;10)
    
    to make decision on StarVIs shareholder transferring his subscribed capital to the persons
other than StarVIs shareholders;11)
    
    to make decision on StarVIs merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing StarVIs business scope;13)
    
    to revise StarVIs articles of association;14)
    
    to decide to change the contents or nature of StarVIs business;15)
    
    to decide to make a loan to any third party or incur any debts in StarVIs name;16)
    
    to decide to sell StarVIs any assets or rights to any third party, including but not limited
to intellectual property;17)
    
    to decide to set up any security rights against StarVIs any assets (including both tangible
and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by StarVI to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect StarVIs rights, obligations, assets or
management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co. LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 55% of stock rights of Guangzhou Media Message Technologies Co., Ltd.
(hereinafter referred to as Xunlong) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 5,500,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of Xunlong; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide Xunlongs management policy and investment plan;2)
    
    to elect and change Xunlongs directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change Xunlongs supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of Xunlongs board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve Xunlongs annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve Xunlongs profit distribution plan and the plan to make good deficits;8)
    
    to make decision on Xunlongs increasing or decreasing registered capital;9)
    
    to make decision on Xunlongs issue of corporate bonds;10)
    
    to make decision on Xunlongs shareholder transferring his subscribed capital to the persons
other than Xunlongs shareholders;11)
    
    to make decision on Xunlongs merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing Xunlongs business scope;13)
    
    to revise Xunlongs articles of association;14)
    
    to decide to change the contents or nature of Xunlongs business;15)
    
    to decide to make a loan to any third party or incur any debts in Xunlongs name;16)
    
    to decide to sell Xunlongs any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against Xunlongs any assets (including both tangible
and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by Xunlong to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect Xunlongs rights, obligations, assets
or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 45% of stock rights of Guangzhou Media Message Technologies Co., Ltd.
(hereinafter referred to as Xunlong) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 4,500,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of Xunlong; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide Xunlongs management policy and investment plan;2)
    
    to elect and change Xunlongs directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change Xunlongs supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of Xunlongs board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve Xunlongs annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve Xunlongs profit distribution plan and the plan to make good deficits;8)
    
    to make decision on Xunlongs increasing or decreasing registered capital;9)
    
    to make decision on Xunlongs issue of corporate bonds;10)
    
    to make decision on Xunlongs shareholder transferring his subscribed capital to the persons
other than Xunlongs shareholders;11)
    
    to make decision on Xunlongs merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing Xunlongs business scope;13)
    
    to revise Xunlongs articles of association;14)
    
    to decide to change the contents or nature of Xunlongs business;15)
    
    to decide to make a loan to any third party or incur any debts in Xunlongs name;16)
    
    to decide to sell Xunlongs any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against Xunlongs any assets (including both tangible
and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by Xunlong to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect Xunlongs rights, obligations, assets
or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 40% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as Wangxing) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 4,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide Wangxings management policy and investment plan;2)
    
    to elect and change Wangxings directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change Wangxings supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of Wangxings board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve Wangxings annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve Wangxings profit distribution plan and the plan to make good deficits;8)
    
    to make decision on Wangxings increasing or decreasing registered capital;9)
    
    to make decision on Wangxings issue of corporate bonds;10)
    
    to make decision on Wangxings shareholder transferring his subscribed capital to the persons
other than Wangxings shareholders;11)
    
    to make decision on Wangxings merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing Wangxings business scope;13)
    
    to revise Wangxings articles of association;14)
    
    to decide to change the contents or nature of Wangxings business;15)
    
    to decide to make a loan to any third party or incur any debts in Wangxings name;16)
    
    to decide to sell Wangxings any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against Wangxings any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by Wangxing to any third party; and19)
    
    to decide any other rights that may materially affect Wangxings rights, obligations, assets
or management matters.
 1




---



##### 



Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
   3




---



##### 



Employee
    
    
    
    SINA.com Technology
(China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 30% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as Wangxing) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide Wangxings management policy and investment plan;2)
    
    to elect and change Wangxings directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change Wangxings supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of Wangxings board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve Wangxings annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve Wangxings profit distribution plan and the plan to make good deficits;8)
    
    to make decision on Wangxings increasing or decreasing registered capital;9)
    
    to make decision on Wangxings issue of corporate bonds;10)
    
    to make decision on Wangxings shareholder transferring his subscribed capital to the persons
other than Wangxings shareholders;11)
    
    to make decision on Wangxings merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing Wangxings business scope;13)
    
    to revise Wangxings articles of association;14)
    
    to decide to change the contents or nature of Wangxings business;15)
    
    to decide to make a loan to any third party or incur any debts in Wangxings name;16)
    
    to decide to sell Wangxings any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against Wangxings any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by Wangxing to any third party; and
 1




---



##### 



19)
    
    to decide any other rights that may materially affect Wangxings rights, obligations, assets
or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




---



##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




---



##### 



Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4




---



##### 



Agreement on Authorization to Exercise Shareholders Voting Power
       1.
    
    The Authorizer holds 30% of stock rights of Shenzhen Wangxing Technology Co., Ltd.
(hereinafter referred to as Wangxing) on the date of signing of this Agreement; and to hold
above-mentioned stock rights, the Authorizer owns a debt of RMB 3,000,000 Yuan to Sina
Company;2.
    
    The Authorizer is willing to authorize Sina Company full powers to exercise his entire
shareholders voting power in his name in shareholders meetings of Wangxing; SINA COMPANY is
willing to accept the above-mentioned authorization.
 NOW, THEREFORE,
 Authorization of Voting Power
  1)
    
    to decide Wangxings management policy and investment plan;2)
    
    to elect and change Wangxings directors, and decide the matters regarding to directors
remuneration;3)
    
    to elect and change Wangxings supervisors, and decide the matters regarding to supervisors
remuneration;4)
    
    to review and approve the reports of Wangxings board of directors;5)
    
    to review and approve supervisors reports;6)
    
    to review and approve Wangxings annual financial budget bill and the proposal of final
accounts;7)
    
    to review and approve Wangxings profit distribution plan and the plan to make good deficits;8)
    
    to make decision on Wangxings increasing or decreasing registered capital;9)
    
    to make decision on Wangxings issue of corporate bonds;10)
    
    to make decision on Wangxings shareholder transferring his subscribed capital to the persons
other than Wangxings shareholders;11)
    
    to make decision on Wangxings merger, separation, change of companys form, dissolution and
liquidation, etc.;12)
    
    to make decision on changing Wangxings business scope;13)
    
    to revise Wangxings articles of association;14)
    
    to decide to change the contents or nature of Wangxings business;15)
    
    to decide to make a loan to any third party or incur any debts in Wangxings name;16)
    
    to decide to sell Wangxings any assets or rights to any third party, including but not
limited to intellectual property;17)
    
    to decide to set up any security rights against Wangxings any assets (including both
tangible and intangible assets) whatsoever such security is for;18)
    
    to decide to assign the contracts signed by Wangxing to any third party; and
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19)
    
    to decide any other rights that may materially affect Wangxings rights, obligations, assets
or management matters.
  Exercising of Voting Power
      3. Term of Authorization
   4. Remuneration of Authorization
  5. Declaration and Guarantee
  1)
    
    possess appropriate competence and power to conclude this Agreement;2)
    
    have capability to fulfill obligations under this Agreement;3)
    
    No performance of obligations under this Agreement is in breach of any restriction in legal
documents that binds.
  6. Liability for Breaching
   2




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##### 



7. Force Majeure
    8 Effectiveness, Modification and Termination
       9. Settlement of Dispute & Governing Law
    10. Miscellaneous
  3




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##### 



Employee
    
    
    
    SINA.com Technology (China) Co.LimitedSignature:
    
    /s/
    
    Authorized Representative:
    
    /s/
 4