EXHIBIT 1
to SCHEDULE 13D
JOINT ACQUISITION STATEMENT
PURSUANT TO RULE 13D-(k)(1)
The undersigned acknowledge and agree that the foregoing statement on
Schedule 13D is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13D shall be filed on behalf
of each of the undersigned without the necessity of filing additional joint
acquisition statements. 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 him, her or it contained herein, but
shall not be responsible for the completeness and accuracy of the information
concerning the other entities or persons, except to the extent that he, she or
it knows or has reason to believe that such information is accurate.
Dated: December 29, 2000
GENERAL ATLANTIC PARTNERS, LLC
By: /s/ Thomas J. Murphy
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Name: Thomas J. Murphy
Title: Attorney-In-Fact
GENERAL ATLANTIC PARTNERS 49, L.P.
By: General Atlantic Partners, LLC,
Its general partner
By: /s/ Thomas J. Murphy
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Name: Thomas J. Murphy
Title: Attorney-In-Fact
GENERAL ATLANTIC PARTNERS 57, L.P.
By: General Atlantic Partners, LLC,
Its general partner
By: /s/ Thomas J. Murphy
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Name: Thomas J. Murphy
Title: Attorney-In-Fact
GAP COINVESTMENT PARTNERS, L.P.
By: /s/ Thomas J. Murphy
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Name: Thomas J. Murphy
Title: Attorney-In-Fact
GAP COINVESTMENT PARTNERS II, L.P.
By: /s/ Thomas J. Murphy
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Name: Thomas J. Murphy
Title: Attorney-In-Fact
