Exhibit 99.1 Signatures of the Reporting
Persons

		TH LEE PUTNAM VENTURES, L.P.
		By:		TH Lee Putnam Fund Advisors, L.P., its general partner
		By:		TH Lee Putnam Fund Advisors, LLC, its general partner
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		TH LEE PUTNAM PARALLEL VENTURES, L.P.
		By:		TH Lee Putnam Fund Advisors, L.P., its general partner
		By:		TH Lee Putnam Fund Advisors, LLC, its general partner
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		TH LEE PUTNAM FUND ADVISORS, L.P.
		By:		TH Lee Putnam Fund Advisors, LLC, its general partner
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		TH LEE PUTNAM FUND ADVISORS, LLC
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown

				Title: Managing Director
		CONTINUED
		TH LEE GLOBAL INTERNET MANAGERS, L.P.
		By:		TH Lee Global Internet Advisors, LLC
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		TH LEE GLOBAL INTERNET ADVISORS, LLC
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		THLi COINVESTMENT PARTNERS, LLC
		By:		TH Lee Putnam Fund Advisors, L.P., its general partner
		By:		TH Lee Putnam Fund Advisors, LLC, its general partner
		By:		/s/ James Brown		12/23/03
				Signature of Reporting Person**		Date
				Name: James Brown
				Title: Managing Director
		BLUESTAR I, LLC
		By:		/s/ Thomas H. Lee		12/23/03
				Signature of Reporting Person**		Date
				Name: Thomas H. Lee
				Title: Managing Member