JOINT FILING AGREEMENT

Exhibit 1

JOINT FILING AGREEMENT

WHEREAS, the statement on the Amendment No. 1 to Schedule 13D to which this agreement is an exhibit (the “Joint Statement”) is being filed on behalf of two or more persons (collectively, the “Reporting Persons”); and

WHEREAS, the Reporting Persons prefer to file the Joint Statement on behalf of all Reporting Persons rather than individual statements on Schedule 13D on behalf of each of the Reporting Persons;

NOW, THEREFORE, the undersigned hereby agree as follows with each of the other Reporting Persons:

1.    Each of the Reporting Persons is individually eligible to use the Joint Statement.

2.    Each of the Reporting Persons is responsible for the timely filing of the Joint Statement and any amendments thereto.

3.    Each of the Reporting Persons is responsible for the completeness and accuracy of the information concerning such person contained in the Joint Statement.

4.    None of the Reporting Persons is responsible for the completeness or accuracy of the information concerning the other Reporting Persons contained in the Joint Statement, unless such person knows or has reason to believe that such information is inaccurate.

5.    The undersigned agree that the Joint Statement is, and any amendment thereto will be, filed on behalf of each of the Reporting Persons.

Date: June 24, 2002						WaldenVC II, L.P.
						By:
								WaldenVC, LLC General Partner

By:		/s/    XXXXXX XXXXXXXX
		Xxxxxx Xxxxxxxx Manager

WaldenVC II-Side, L.P.

By:

WaldenVC, LLC

General Partner

By:		/s/    XXXXXX XXXXXXXX
		Xxxxxx Xxxxxxxx Manager

Xxxxxx Media and Information Technology Fund, L.P.

By:

Xxxxxx Media, LLC

General Partner

By:		/s/    XXXXXX XXXXXXXX
		Xxxxxx Xxxxxxxx Manager

						WaldenVC, LLC
						By:		/s/    XXXXXX XXXXXXXX
								Xxxxxx Xxxxxxxx Manager

						Xxxxxx Media, LLC
						By:		/s/    XXXXXX XXXXXXXX
								Xxxxxx Xxxxxxxx Manager

						By:		/s/    XXXXXX XXXXXXXX
								Xxxxxx Xxxxxxxx

						By:		/s/    XXXXXX XXXXXXXXX
								Xxxxxx Xxxxxxxxx

						By:		/s/    XXXXXX XXXXX
								Xxxxxx Xxxxx

						By:		/s/    XXXXXX XXXXXXXX
								Xxxxxx Xxxxxxxx Manager

						By:		/s/    XXXXXXX XXXXXXX
								Xxxxxxx XxXxxxx

By: /s/    XXXXXXXX XXXXXX          Xxxxxxxx Xxxxxx