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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                              ____________________


                                  SCHEDULE 13G

                              ____________________


                    Under the Securities Exchange Act of 1934
                               (Amendment No. 2)*




                                SINA CORPORATION
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                                (Name of Issuer)


                                  Common Shares
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                         (Title of Class of Securities)


                                     2579230
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                                 (CUSIP Number)


                                December 29, 2006
                           End of Calendar Year Filing
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             (Date of Event Which Requires Filing of this Statement)




Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[_] Rule 13d-1(b)
[X] Rule 13d-1(c)
[_] Rule 13d-1(d)

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

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
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CUSIP No.  2579230                     13G                     Page 2 of 6 Pages
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  1.    Names of Reporting Persons.
        I.R.S. Identification Nos. of above persons (entities only).

        Bigfoot Ventures Ltd.
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  2.    Check the Appropriate Box if a Member of a Group (See Instructions)
                                                         (a)[_]
                                                         (b)[_]
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  3.    SEC Use Only


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  4.    Citizenship or Place of Organization

        British Virgin Islands
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                  5.    Sole Voting Power

Number of               None
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Shares            6.    Shared Voting Power

Beneficially            None
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Owned by          7.    Sole Dispositive Power

Each Reporting          None
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Person With       8.    Shared Dispositive Power

                        None
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  9.    Aggregate Amount Beneficially Owned by Each Reporting Person

        0 shares
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  10.   Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See
        Instructions)

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  11.   Percent of Class Represented by Amount in Row (9)

        0%
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  12.   Type of Reporting Person (See Instructions)

        CO
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CUSIP No.  2579230                     13G                     Page 3 of 6 Pages
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Item 1.

Name of Issuer:  SINA CORPORATION

(b) Address of Issuer's Principal Executive Offices:

Room 1802, United Plaza
1468 Nan Jing Road West
Shanghai 200040, China



Item 2.

(a) Name of Person Filing: Bigfoot Ventures Ltd.,

(b) Address of Principal Business Office or, if none, Residence

Registered Office Address of Bigfoot Ventures Ltd.:
PO Box 173, Kingston Chambers, Road Town,
Tortola, British Virgin Islands

(c) Citizenship

British Virgin Islands

(d) Title of Class of Securities

Common

(e) CUSIP Number 2579230


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CUSIP No.  2579230                     13G                     Page 4 of 6 Pages
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Item 3.  If this statement is filed pursuant to ss.ss.240.13d-1(b) or
         240.13d-2(b) or (c), check whether the person filing is a:

         (a) [_] Broker or dealer registered under section 15 of the Act
                 (15 U.S.C. 78o).
         (b) [_] Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
         (c) [_] Insurance company as defined in section 3(a)(19) of the Act (15
                 U.S.C. 78c).
         (d) [_] Investment company registered under section 8 of the Investment
                 Company Act of 1940 (15 U.S.C 80a-8).
         (e) [_] An investment adviser in accordance with
                 ss.240.13d-1(b)(1)(ii)(E);
         (f) [_] An employee benefit plan or endowment fund in accordance with
                 ss.240.13d-1(b)(1)(ii)(F);
         (g) [_] A parent holding company or control person in accordance with
                 ss.240.13d-1(b)(1)(ii)(G);
         (h) [_] A savings associations as defined in Section 3(b) of the
                 Federal Deposit Insurance Act (12 U.S.C. 1813);
         (i) [_] A church plan that is excluded from the definition of an
                 investment company under section 3(c)(14) of the Investment
                 Company Act of 1940 (15 U.S.C. 80a-3);
         (j) [_] Group, in accordance with ss.240.13d-1(b)(1)(ii)(J).

         If this statement is filed pursuant to Rule 13d-1(c), check this box[X]


Item 4.  Ownership:

         Bigfoot Ventures Ltd.

         (a) Amount beneficially owned:  None

         (b) Percent of class:  0%



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CUSIP No.  2579230                     13G                     Page 5 of 6 Pages
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         (c) Number of shares as to which the person has:

               (i) Sole power to vote or to direct the vote: 0

              (ii) Shared power to vote or to direct the vote: 0.

             (iii) Sole power to dispose or to direct the disposition of: 0

              (iv) Shared power to dispose or to direct the disposition of: 0.


Item 5.  Ownership of Five Percent or Less of a Class:

         Not Applicable


This statement is being filed as the end of the calendar year statement and to
report the fact that the reporting person has ceased to be the beneficial owner
of more than five percent of the class of securities [X].


Item 6.  Ownership of More than Five Percent on Behalf of Another Person:

         Not Applicable


Item 7.  Identification and Classification of the Subsidiary Which Acquired the
         Security Being Reported on By the Parent Holding Company

         Not Applicable.


Item 8.  Identification and Classification of Members of the Group

         Not Applicable.


Item 9.  Notice of Dissolution of Group

         Not Applicable.

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CUSIP No.  2579230                     13G                     Page 6 of 6 Pages
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Item 10. Certification

By signing below I certify that, to the best of my knowledge and belief, the
securities referred to above were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer of
the securities and were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.










SIGNATURE

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

Dated this 6th day of February 2007.


/s/ Bigfoot Ventures, Ltd.
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By:  Michael J.G. Gleissner
Sole Shareholder