EQUITY PLEDGE AGREEMENT
    Exhibit 4.37
    This Equity Pledge Agreement (this “Agreement”) is
    entered into in Beijing, PRC by the following parties:
    Pledgee:
| 
    Party A:
 | Baidu Online Network Technology (Beijing) Co., Ltd. | |
| Legal Address:
    12/F., Ideal
    International Plaza, No. 58 North-West 4th Ring, Haidian District, Beijing, PRC, 100080 | ||
| 
    Pledgor:
 | ||
| 
    Party B:
 | Hu Cai | |
| ID card No.: 320106197212162416 | 
    WHEREAS,
    1. Party A (the “Pledgee”), a wholly
    foreign-owned enterprise registered in Beijing, the
    People’s Republic of China (the “PRC”), has been
    licensed by the relevant PRC government authorities to carry on
    the business of developing and manufacturing computer programs,
    providing technical consulting and services for self-made
    products, constructing computer network systems, selling
    self-made products (except for items that have not obtained
    specified approvals).
    2. Party B (the “Pledgor”), is a citizen of the
    PRC. The Pledgor owns 9% of the equity interest in Beijing
    BaiduPay Science and Technology Co., Ltd., a limited liability
    company registered in Beijing, PRC (the “Company”).
    3. Party A made a loan in an amount of RMB 9,000,000
    (hereinafter the “Loan”) to Party B and the parties
    executed a loan agreement (the “Loan Agreement”) on
    [Date].  The term of the Loan is 10 years
    commencing from the execution date of the Loan Agreement.
    4. In order to ensure that Party B will perform its
    obligations under the Loan Agreement, the Pledgor agrees to
    pledge all his equity interest in the Company as security for
    the performance of his obligations under the Loan Agreement.
    NOW THEREFORE, the Pledgee and the Pledgor through
    friendly negotiations hereby enter into this Agreement based
    upon the following terms:
    1. Definitions and Interpretation
    Unless otherwise provided in this Agreement, the following terms
    shall have the following meanings:
    1.1 “Pledge”:  refers to the
    full content of Article 2 hereunder.
    1.2 “Equity Interest”:  refers
    to all of the equity interest in the Company legally held by the
    Pledgor.
    1.3 “Rate of Pledge”:  refers to
    the ratio between the value of the Pledge under this Agreement
    and the total amount of the Loan.
    1.4 “Term of Pledge”:  refers to
    the period provided for under Article 3.2 hereunder.
    1.5 “Principal
    Agreement”:  refers to the Loan Agreement.
    1.6 “Event of Default”:  refers
    to any event listed in Article 7.1 hereunder.
    1.7 “Notice of Default”:  refers
    to the notice of default issued by the Pledgee in accordance
    with this Agreement.
    2. Pledge
    The Pledgor agrees to pledge his Equity Interest in the Company
    to the Pledgee as security for his obligations under the Loan
    Agreement. The term “Pledge” under this Agreement
    refers to the right of the Pledgee to be entitled to priority in
    receiving payment in the form of the Equity Interest based on
    the conversion value thereof, or from the proceeds from the
    auction or sale of the Equity Interest pledged by the Pledgor to
    the Pledgee.
    3. Rate of Pledge and Term of Pledge
    3.1 The rate of the Pledge
    The rate of the Pledge shall be approximately 100%.
    3.2 The term of the Pledge
    3.2.1 The Pledge shall take effect as of the date when the
    pledge of the Equity Interest is recorded in the Register of
    Shareholders of the Company and shall remain in effect until two
    (2) years after the obligations under the Principal
    Agreement will have been fulfilled. The parties agree that, if
    situations allow, they will use their best efforts to register
    the Pledge with the Administration for Industry and Commerce at
    the place of registration of the Company. However, the parties
    confirm that the effectiveness of this Agreement is not subject
    to the registration unless the laws and regulations of the PRC
    provide otherwise.
    3.2.2 During the term of the Pledge, the Pledgee shall be
    entitled to dispose of the pledged assets in accordance with
    this Agreement in the event that the Pledgor does not perform
    his obligations under the Loan Agreement.
    4. Physical Possession of Documents
    4.1 During the term of the Pledge under this Agreement, the
    Pledgor shall deliver the physical possession of his Certificate
    of Capital Contribution and the Register of Shareholders of the
    Company to the Pledgee within one (1) week from the
    execution date of this Agreement.
    4.2 The Pledgee shall be entitled to collect the dividends
    for the Equity Interest.
    4.3 The Pledge under this Agreement will be recorded in the
    Register of Shareholders of the Company.
    5. Representation and Warranty of the Pledgor
    5.1 The Pledgor is the legal owner of the Equity Interest
    pledged.
    5.2 Except for the benefit of the Pledgee, the Pledgor has
    not pledged the Equity Interest or created other encumbrance on
    the Equity Interest.
    6. Covenants of the Pledgor
    6.1 During the effective term of this Agreement, the
    Pledgor covenants to the Pledgee for its benefit that the
    Pledgor shall:
    6.1.1 Not transfer or assign the Equity Interest, create or
    permit the existence of any other pledges which may have an
    adverse effect on the rights or benefits of the Pledgee without
    prior written consent of the Pledgee;
    6.1.2 Comply with laws and regulations with respect to the
    pledge of rights; present to the Pledgee the notices, orders or
    suggestions with respect to the Pledge issued or made by
    relevant government authorities within five (5) days upon
    receiving such notices, orders or suggestions; comply with such
    notices, orders or suggestions or, alternatively, at the
    reasonable request of the Pledgee or with consent from the
    Pledgee, raise objection to such notices, orders or suggestions;
    6.1.3 Timely notify the Pledgee of any events or any
    notices received which may affect the Pledgor’s right to
    all or any part of the Equity Interest, and any events or any
    received notices which may change the Pledgor’s warranties
    and obligations under this Agreement or affect the
    Pledgor’s performance of its obligations under this
    Agreement.
    
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    6.2 The Pledgor agrees that the Pledgee’s right to the
    Pledge obtained from this Agreement shall not be suspended or
    inhibited by any legal procedure initiated by the Pledgor or any
    successors of the Pledgor or any person authorized by the
    Pledgor or any other person.
    6.3 The Pledgor promises to the Pledgee that in order to
    protect or perfect the security for the payment of the Loan, the
    Pledgor shall execute in good faith and cause other parties who
    have interests in the Pledge to execute, all title certificates
    and contracts or to perform any other actions (and cause other
    parties who have interests to take action) as required by the
    Pledgee and make access to exercise the rights and authorization
    vested in the Pledgee under this Agreement.
    6.4 The Pledgor promises to the Pledgee that
    he/she will
    execute all amendment documents (if applicable and necessary) in
    connection with the certificate of the Equity Interest with the
    Pledgee or its designated person (being a natural person or a
    legal entity) and, within a reasonable period, provide to the
    Pledgee all notices, orders and decisions about the Pledge as
    the Pledgee deems necessary.
    6.5 The Pledgor promises to the Pledgee that
    he/she will
    comply with and perform all the guarantees, covenants,
    warranties, representations and conditions for the benefit of
    the Pledgee. The Pledgor shall compensate the Pledgee for all
    losses suffered by the Pledgee because of the Pledgor’s
    failure to perform in whole or in part its guarantees,
    covenants, warranties, representations and conditions.
    7. Event of Default
    7.1 The following events shall be regarded as events of
    default:
    7.1.1 Pledgor fails to perform his obligations under the
    Loan Agreement;
    7.1.2 Any representation or warranty made by the Pledgor in
    Article 5 hereof contains material misleading statements or
    errors
    and/or the
    Pledgor breaches any warranty in Article 5 hereof;
    7.1.3 The Pledgor breaches the covenants under
    Article 6 hereof;
    7.1.4 The Pledgor breaches another provision of this
    Agreement;
    7.1.5 The Pledgor waives the pledged Equity Interest or
    transfers or assigns the pledged Equity Interest without prior
    written consent from the Pledgee;
    7.1.6 Any of the Pledgor’s external loans, guaranties,
    compensations, undertakings or other obligations (1) is
    required to be repaid or performed prior to the scheduled due
    date because of a default; or (2) is due but cannot be
    repaid or performed as scheduled, causing the Pledgee to believe
    that the Pledgor’s ability to perform the obligations
    hereunder has been affected;
    7.1.7 The Company is incapable of repaying its general
    debts or other debts;
    7.1.8 This Agreement becomes illegal or the Pledgor is not
    capable of continuing to perform the obligations hereunder due
    to any reason other than force majeure;
    7.1.9 There have been adverse changes to the properties
    owned by the Pledgor, causing the Pledgee to believe that the
    capability of the Pledgor to perform the obligations hereunder
    has been affected;
    7.1.10 The breach of the other provisions of this Agreement
    by the Pledgor due to his act or omission.
    7.2 The Pledgor shall immediately give a written notice to
    the Pledgee if the Pledgor knows or discovers that any event
    specified under Article 7.1 hereof or any event that may
    result in the foregoing events has occurred.
    7.3 Unless an event of default under Article 7.1
    hereof has been solved to the Pledgee’s satisfaction, the
    Pledgee, at any time when the event of default occurs or at
    anytime thereafter, may give a written notice of default to the
    Pledgor, requiring the Pledgor to immediately make full payment
    of the outstanding amount under the Loan Agreement or requesting
    to exercise the Pledge in accordance with Article 8 hereof.
    
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    8. Exercise of the Pledge
    8.1 The Pledgor shall not transfer or assign the Equity
    Interest without prior written approval from the Pledgee prior
    to the full performance of his obligations under the Loan
    Agreement.
    8.2 The Pledgee shall give a notice of default to the
    Pledgor when the Pledgee exercises the Pledge.
    8.3 Subject to Article 7.3, the Pledgee may exercise
    the Pledge when the Pledgee gives a notice of default in
    accordance with Article 7.3 or at anytime thereafter.
    8.4 The Pledgee is entitled to priority in receiving
    payment in the form of all or part of the Equity Interest based
    on the conversion value thereof, or from the proceeds from the
    auction or sale of all or part of the Equity Interest in
    accordance with legal procedure, until the outstanding debt and
    all other payables of the Pledgor under Loan Agreement are
    repaid.
    8.5 The Pledgor shall not hinder the Pledgee from
    exercising the Pledge in accordance with this Agreement and
    shall give necessary assistance so that the Pledgee could fully
    exercise its Pledge.
    9. Assignment
    9.1 The Pledgor shall not assign or transfer its rights and
    obligations hereunder without prior consent from the Pledgee.
    9.2 This Agreement shall be binding upon the Pledgor and
    his successors and be binding on the Pledgee and each of its
    successors and permitted assigns.
    9.3 To the extent permitted by law, the Pledgee may
    transfer or assign any or all of its rights and obligations
    under the Loan Agreement to any person (natural person or legal
    entity) designated by it at any time. In that case, the assignee
    shall have the same rights and obligations as those of the
    Pledgee as if the assignee was an original party hereto. When
    the Pledgee transfers or assigns the rights and obligations
    under the Loan Agreement, it is only required to provide a
    written notice to the Pledgor, and at the request of the
    Pledgee, the Pledgor shall execute the relevant agreements
    and/or
    documents with respect to such transfer or assignment.
    9.4 After the Pledgee has been changed as a result of a
    transfer or an assignment, the new parties to the Pledge shall
    execute a new pledge contract.
    10. Effectiveness and Term
    This Agreement is effective as of the date first set forth above
    and from the date when the pledge is recorded on the
    Company’s Register of Shareholders.
    11. Termination
    This Agreement shall terminate when the loan under the Loan
    Agreement has been fully repaid and the Pledgor no longer has
    any outstanding obligations under the Loan Agreement.
    Thereafter, the Pledgee shall cancel or terminate this Agreement
    as soon as reasonably practicable.
    12. Fees and Other Charges
    12.1 The Pledgor shall be responsible for all of the fees
    and actual expenses in relation to this Agreement including, but
    not limited to, legal fees, production costs, stamp tax and any
    other taxes and charges. If the Pledgee pays the relevant taxes
    in accordance with the laws, the Pledgor shall fully indemnify
    the Pledgee for such taxes paid by the Pledgee.
    12.2 In the event that the Pledgee has to make a claim
    against the Pledgor by any means as a result of the
    Pledgor’s failure to pay any tax or expense payable by the
    Pledgor under this Agreement, the Pledgor shall be responsible
    for all the expenses arising from such claim (including but not
    limited to any taxes, handling fees, management fees, litigation
    fees, attorney’s fees, and various insurance premiums in
    connection with the disposition of the Pledge).
    
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    13. Force Majeure
    13.1 Force Majeure, which includes but is not limited to
    acts of governments, acts of nature, fires, explosions,
    typhoons, floods, earthquake, tides, lightning or war, refers to
    any unforeseen event that is beyond a party’s reasonable
    control and cannot be prevented with reasonable care. However,
    any insufficiency of creditworthiness, capital or financing
    shall not be regarded as an event beyond a party’s
    reasonable control. The affected party by Force Majeure shall
    promptly notify the other party of such event resulting in
    exemption.
    13.2 In the event that the affected party is delayed or
    prevented from performing its obligations under this Agreement
    by Force Majeure, and only to the extent of such delay and
    prevention, the affected party shall not be liable for
    obligations under this Agreement. The affected party shall take
    appropriate measures to minimize or remove the effects of Force
    Majeure and attempt to resume performance of the obligations
    that were delayed or prevented by the event of Force Majeure.
    After the event of Force Majeure is removed, both parties agree
    to resume the performance of this Agreement using their best
    efforts.
    14. Confidentiality
    The parties to this Agreement acknowledge and confirm that all
    the oral and written materials exchanged relating to this
    Agreement are confidential. Each party must keep such materials
    confidential and can not disclose such materials to any other
    third party without the other party’s prior written
    approval, unless: (a) the public knows or will know the
    materials (not due of the disclosure by the receiving party);
    (b) the disclosed materials are required by law or stock
    exchange rules to be disclosed; or (c) materials relating
    to the transactions under this Agreement are disclosed to the
    parties’ legal or financial advisors, who must keep them
    confidential as well. Disclosure of the confidential information
    by employees or institutions hired by the parties is deemed as
    an act by the parties, therefore, subjecting them to liability.
    15. Dispute Resolution
    15.1 This Agreement shall be governed by and construed in
    accordance with PRC law.
    15.2 The parties shall strive to settle any dispute arising
    from the interpretation or performance of this Agreement through
    friendly consultation. In case no settlement can be reached
    through consultation, each party can submit such matter to the
    China International Economic and Trade Arbitration Commission
    (“CIETAC”) for arbitration. The arbitration shall
    follow the current rules of CIETAC, the arbitration proceedings
    shall be conducted in Chinese and shall take place in Beijing,
    PRC. The arbitration award shall be final and binding upon the
    parties.
    16. Notice
    Any notice which is given by the parties hereto for the purpose
    of performing the rights and obligations hereunder shall be in
    writing. Where such notice is delivered personally, the time of
    notice is the time when such notice actually reaches the
    addressee; where such notice is transmitted by telex or
    facsimile, the notice time is the time when such notice is
    transmitted. If such notice does not reach the addressee on a
    business day or reaches the addressee after business hours, the
    next business day following such day is the date of notice. The
    delivery place is the address first written above for each of
    the parties hereto or the address advised by such party in
    writing, including facsimile and telex, from time to time.
    17. Entire Contract
    Notwithstanding Article 10, the parties agree that this
    Agreement constitutes the entire agreement of the parties hereto
    with respect to the subject matters herein upon its
    effectiveness and supersedes and replaces all prior oral
    and/or
    written agreements and understandings relating to the subject
    matters of this Agreement.
    18. Severability
    Should any provision of this Agreement be held invalid or
    unenforceable because of inconsistency with applicable laws,
    such provision shall be invalid or unenforceable only to the
    extent of such applicable laws without affecting the validity or
    enforceability of the remainder of this Agreement.
    
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    19. Appendices
    The appendices to this Agreement shall constitute an integral
    part of this Agreement.
    20. Amendment or Supplement
    20.1 The parties may amend or supplement this Agreement by
    written agreement. The amendments or supplements to this
    Agreement duly executed by both parties shall form an integral
    part of this Agreement and shall have the same legal effect as
    this Agreement.
    20.2 This Agreement and any amendments, modifications,
    supplements, additions or changes hereto shall be in writing and
    shall be effective upon being executed and sealed by the parties
    hereto.
    21. Counterparts
    This Agreement is executed in Chinese in duplicate, with each
    party hereto holding one copy. Both originals have the same
    legal effect.
    
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    [Signature Page]
    Pledgee: Baidu Online Network Technology (Beijing) Co.,
    Ltd.
| Legal Representative/Authorized Representative: | /s/  ▇▇▇▇▇
    ▇▇▇▇ | 
    Seal: [Baidu Online Network Technology (Beijing) Co., Ltd. seal]
    Pledgor: Hu Cai
| Signature: | /s/  Hu
    Cai | 
    Beijing BaiduPay Science and Technology Co., Ltd.
| Legal Representative/Authorized Representative: | /s/  Hu
    Cai | 
    Seal: [Beijing BaiduPay Science and Technology Co., Ltd. seal]
    
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