Exhibit 99.1
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Joint Filing Agreement
The undersigned hereby agree that the statement on Schedule 13G with
respect to the common stock of eSpeed, Inc. is, and any amendment thereto signed
by each of the undersigned shall be, filed on behalf of each undersigned
pursuant to and in accordance with the provisions of 13d-1(k) under the
Securities Exchange Act of 1934 and that all subsequent amendments to this
statement on Schedule 13G shall be filed on behalf of each of the undersigned
without the necessity of filing additional joint filing agreements. The
undersigned acknowledge that each shall be responsible for the timely filing of
such amendments, and for the completeness and accuracy of the information
concerning it contained therein, but shall not be responsible for the
completeness and accuracy of the information concerning the other, except to the
extent that it knows or has reason to believe that such information is
inaccurate.
DATED: May 30, 2006
XXX XXXXXXX ASSET MANAGEMENT, L.L.C.
By: /s/ Xxx X. Xxxxxxx
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Name: Xxx X. Xxxxxxx
Title: Manager
X. XXXXXXX CAPITAL ADVISORS, L.P.
By: X. Xxxxxxx Capital Management, Inc.,
its general partner
By: /s/ Xxx X. Xxxxxxx
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Name: Xxx X. Xxxxxxx
Title: President
XXX X. XXXXXXX
/s/ Xxx X. Xxxxxxx
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Xxx X. Xxxxxxx
XXXXXXX FAMILY TRUST u/d/t 12/18/90
By: /s/ Xxxxx X. Xxxxxxx
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Name: Xxxxx X. Xxxxxxx
Title: Trustee
XXXXX X. XXXXXXX
/s/ Xxxxx X. Xxxxxxx
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Xxxxx X. Xxxxxxx
[JOINT FILING AGREEMENT FOR SCHEDULE 13G WITH RESPECT TO ESPEED, INC.]