EXHIBIT A JOINT FILING AGREEMENT

CUSIP No. 00000X000

EXHIBIT A
JOINT FILING AGREEMENT

     The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock of NetRatings, Inc. is, and any amendments thereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934.

Date: February 8, 2007				TCS CAPITAL INVESTMENTS, LP
				By: TCS Capital GP, LLC
				its General Partner
				By: /s/ Xxxx Xxxxxx Name: Xxxx Xxxxxx
				Title: Managing Member
				TCS CAPITAL GP, LLC
				By: /s/ Xxxx Xxxxxx
				Name: Xxxx Xxxxxx
				Title: Managing Member
				XXXX XXXXXX
				By: /s/ Xxxx Xxxxxx