EXHIBIT A JOINT FILING AGREEMENTJoint Filing Agreement • February 9th, 2007 • Semler Eric • Services-business services, nec
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.
