Exhibit 1
JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(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 filing 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 inaccurate.
Date: March 19, 2010
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| | GREAT HILL INVESTORS, LLC
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| | By: | /s/ Christopher S. Gaffney | |
| | | Name: | Christopher S. Gaffney | |
| | | Title: | A Manager | |
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| | GREAT HILL EQUITY PARTNERS III, LP
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| | By: | Great Hill Partners GP III, LP, its General Partner | |
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| | By: | GHP III, LLC, its General Partner | |
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| | By: | /s/ Christopher S. Gaffney | |
| | | Name: | Christopher S. Gaffney | |
| | | Title: | A Manager | |
| |
| | GREAT HILL PARTNERS GP III, LP
| |
| | By: | GHP III, LLC, its General Partner | |
| |
| | | |
| | By: | /s/ Christopher S. Gaffney | |
| | | Name: | Christopher S. Gaffney | |
| | | Title: | A Manager | |
| |
| | GHP III, LLC
| |
| | By: | /s/ Christopher S. Gaffney | |
| | | Name: | Christopher S. Gaffney | |
| | | Title: | A Manager | |
| |
| | | |
| | /s/ Christopher S. Gaffney | |
| | Christopher S. Gaffney | |
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Page 18 of 19 pages
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| | /s/ John G. Hayes | |
| | John G. Hayes | |
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| | | |
| | /s/ Matthew T. Vettel | |
| | Matthew T. Vettel | |
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| | | |
| | /s/ Stephen F. Gormley | |
| | Stephen F. Gormley | |
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Page 19 of 19 pages
