Document:

<PAGE>
                                                                       Ex. 10.37

                   ACKNOWLEDGEMENT LETTER FOR PARTICIPATION OF
                   SHAREHOLDERS' VOTING RIGHTS PROXY AGREEMENT

SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD., (registered address: F Room 1003,
No.1027, Changning Road, Changning District, Shanghai) (hereinafter the
"PARTICIPATING SHAREHOLDER"), and HEFEI FUKESI ADVERTISEMENT CO., LTD. limited
liability company (registered address: Room B2401, Gujin Baihua Building, 156
Shouchun Rd., Hefei) (hereinafter the "PARTICIPATED TARGET COMPANY"), as
independent party, hereby agree to participate in the Shareholders' Voting
Rights Proxy Agreement among FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO., LTD.,
SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD. and other relevant parties
(hereinafter, "PROXY AGREEMENT") dated March 28 2005. Participating Shareholder
and Participated Target Company agree to entrust the Trustees designated by
Focus Media Technology to exercise the voting rights in Participating Target
Company in respect of 90% of the equity interest in the registered capital of
Participating Target Company held by the Participating Shareholder as of the
date of the Acknowledgement Letter, on behalf of Participating Shareholder.

Once this Acknowledgement Letter is executed by the Participating Shareholder
and Participating Target Company, Participating Shareholder and Participated
Target Company shall be deemed to have made the same undertakings and warranties
with those of the Shareholders and Target Companies under the Proxy Agreement,
agreed to respectively perform the obligations of the Shareholders and Target
Companies stipulated in the Proxy Agreement, and acknowledged the rights and
obligations of the Parties under the Proxy Agreement.

<PAGE>

SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

HEFEI FUKESI ADVERTISEMENT CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006<PAGE>
                                                                       Ex. 10.38

                   ACKNOWLEDGEMENT LETTER FOR PARTICIPATION OF
                   SHAREHOLDERS' VOTING RIGHTS PROXY AGREEMENT

SHANGHAI FOCUS MEDIA CO., LTD., (registered address: Room A65, 28 Floor, No.369,
Jiangsu Road, Changning District, Shanghai) (hereinafter the "PARTICIPATING
SHAREHOLDER"), and HEFEI FUKESI ADVERTISEMENT CO., LTD. (registered address:
Room B2401, Gujin Baihua Building, 156 Shouchun Rd., Hefei) (hereinafter the
"PARTICIPATED TARGET COMPANY"), as independent party, hereby agree to
participate in the Shareholders' Voting Rights Proxy Agreement among FOCUS MEDIA
TECHNOLOGY (SHANGHAI) CO., LTD., SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD.
and other relevant parties (hereinafter, "PROXY AGREEMENT") dated March 28 2005.
Participating Shareholder and Participated Target Company agree to entrust the
Trustees designated by Focus Media Technology to exercise the voting rights in
Participating Target Company in respect of 10% of the equity interest in the
registered capital of Participating Target Company held by the Participating
Shareholder as of the date of the Acknowledgement Letter, on behalf of
Participating Shareholder.

Once this Acknowledgement Letter is executed by the Participating Shareholder
and Participating Target Company, Participating Shareholder and Participated
Target Company shall be deemed to have made the same undertakings and warranties
with those of the Shareholders and Target Companies under the Proxy Agreement,
agreed to respectively perform the obligations of the Shareholders and Target
Companies stipulated in the Proxy Agreement, and acknowledged the rights and
obligations of the Parties under the Proxy Agreement.

<PAGE>

SHANGHAI FOCUS MEDIA CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

HEFEI FUKESI ADVERTISEMENT CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006<PAGE>
                                                                       Ex. 10.39

                   ACKNOWLEDGEMENT LETTER FOR PARTICIPATION OF
                   SHAREHOLDERS' VOTING RIGHTS PROXY AGREEMENT

     SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD., (registered address: F Room
1003, No.1027, Changning Road, Changning District, Shanghai) (hereinafter the
"PARTICIPATING SHAREHOLDER"), and SHENYANG FOCUS MEDIA ADVERTISEMENT CO., LTD.
limited liability company (registered address: Room 809, 81 Wencui Rd,
Shengyang) (hereinafter the "PARTICIPATED TARGET COMPANY"), as independent
party, hereby agree to participate in the Shareholders' Voting Rights Proxy
Agreement among FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO., LTD., SHANGHAI FOCUS
MEDIA ADVERTISEMENT CO., LTD. and other relevant parties (hereinafter, "PROXY
AGREEMENT") dated March 28 2005. Participating Shareholder and Participated
Target Company agree to entrust the Trustees designated by Focus Media
Technology to exercise the voting rights in Participating Target Company in
respect of 70% of the equity interest in the registered capital of Participating
Target Company held by the Participating Shareholder as of the date of the
Acknowledgement Letter, on behalf of Participating Shareholder.

     Once this Acknowledgement Letter is executed by the Participating
Shareholder and Participating Target Company, Participating Shareholder and
Participated Target Company shall be deemed to have made the same undertakings
and warranties with those of the Shareholders and Target Companies under the
Proxy Agreement, agreed to respectively perform the obligations of the
Shareholders and Target Companies stipulated in the Proxy Agreement, and
acknowledged the rights and obligations of the Parties under the Proxy
Agreement.

<PAGE>

SHANGHAI FOCUS MEDIA ADVERTISEMENT CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

SHENYANG FOCUS MEDIA ADVERTISEMENT CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006<PAGE>
                                                                       Ex. 10.40

                   ACKNOWLEDGEMENT LETTER FOR PARTICIPATION OF
                   SHAREHOLDERS' VOTING RIGHTS PROXY AGREEMENT

SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD., (registered address: F Room 1003,
No.1027, Changning Road, Changning District, Shanghai) (hereinafter the
"PARTICIPATING SHAREHOLDER"), and SHENZHEN BIANJIE BUILDING ADVERTISEMENT CO.,
LTD. limited liability company (registered address: Room 1020, A, Wangxing
Square, 38 Hongli Rd., Shenzhen) (hereinafter the "PARTICIPATED TARGET
COMPANY"), as independent party, hereby agree to participate in the
Shareholders' Voting Rights Proxy Agreement among FOCUS MEDIA TECHNOLOGY
(SHANGHAI) CO., LTD., SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD. and other
relevant parties (hereinafter, "PROXY AGREEMENT") dated March 28 2005.
Participating Shareholder and Participated Target Company agree to entrust the
Trustees designated by Focus Media Technology to exercise the voting rights in
Participating Target Company in respect of 1% of the equity interest in the
registered capital of Participating Target Company held by the Participating
Shareholder as of the date of the Acknowledgement Letter, on behalf of
Participating Shareholder.

     Once this Acknowledgement Letter is executed by the Participating
Shareholder and Participating Target Company, Participating Shareholder and
Participated Target Company shall be deemed to have made the same undertakings
and warranties with those of the Shareholders and Target Companies under the
Proxy Agreement, agreed to respectively perform the obligations of the
Shareholders and Target Companies stipulated in the Proxy Agreement, and
acknowledged the rights and obligations of the Parties under the Proxy
Agreement.

<PAGE>

SHANGHAI FOCUS MEDIA ADVERTISEMENT CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

SHENZHEN BIANJIE BUILDING ADVERTISEMENT
CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

FOCUS MEDIA TECHNOLOGY (SHANGHAI) CO.,
LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006<PAGE>
                                                                       Ex. 10.41

                   ACKNOWLEDGEMENT LETTER FOR PARTICIPATION OF
                   SHAREHOLDERS' VOTING RIGHTS PROXY AGREEMENT

SHANGHAI FOCUS MEDIA CO., LTD., (registered address: Room A65, 28 Floor, No.369,
Jiangsu Road, Changning District, Shanghai) (hereinafter the "PARTICIPATING
SHAREHOLDER"), and SHENZHEN BIANJIE BUILDING ADVERTISEMENT CO., LTD. (registered
address: Room 1020, A, Wangxing Square, 38 Hongli Rd., Shenzhen) (hereinafter
the "PARTICIPATED TARGET COMPANY"), as independent party, hereby agree to
participate in the Shareholders' Voting Rights Proxy Agreement among FOCUS MEDIA
TECHNOLOGY (SHANGHAI) CO., LTD., SHANGHAI FOCUS MEDIA ADVERTISEMENT CO., LTD.
and other relevant parties (hereinafter, "PROXY AGREEMENT") dated March 28 2005.
Participating Shareholder and Participated Target Company agree to entrust the
Trustees designated by Focus Media Technology to exercise the voting rights in
Participating Target Company in respect of 1% of the equity interest in the
registered capital of Participating Target Company held by the Participating
Shareholder as of the date of the Acknowledgement Letter, on behalf of
Participating Shareholder.

Once this Acknowledgement Letter is executed by the Participating Shareholder
and Participating Target Company, Participating Shareholder and Participated
Target Company shall be deemed to have made the same undertakings and warranties
with those of the Shareholders and Target Companies under the Proxy Agreement,
agreed to respectively perform the obligations of the Shareholders and Target
Companies stipulated in the Proxy Agreement, and acknowledged the rights and
obligations of the Parties under the Proxy Agreement.

<PAGE>

SHANGHAI FOCUS MEDIA CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

SHENZHEN BIANJIE BUILDING ADVERTISEMENT
CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

FOCUS MEDIA TECHNOLOGY (SHANGHAI)
CO., LTD.
(Company chop)

Signature by: /s/ Jason Nanchun Jiang
              --------------------------
Name: Jason Nanchun Jiang
Position: Legal Representative
Date: January 13, 2006

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