NetRatings Announces Fourth Quarter and Full Year 2006 Financial Results

In connection with the proposed merger, NetRatings has filed a preliminary proxy statement with the Securities and Exchange Commission. Stockholders of NetRatings are urged to read the definitive proxy statement regarding the proposed merger, because it will contain important information. Stockholders may obtain a free copy of the definitive proxy statement as well as other filings containing information about The Nielsen Company and NetRatings, when available, without charge, at the SEC Internet site ( http://www.sec.gov ). In addition, copies of the proxy statement can be obtained without charge, by directing a request to NetRatings, Inc., 120 West 45th Street, New York, NY 10036, Attention: Susan Hickey, 212-703-5900.

NetRatings, its directors and executive officers and other persons may be deemed to be participants in the solicitation of proxies in respect of the proposed transaction. Information regarding NetRatings' directors and executive officers is available in NetRatings' proxy statement for its most recent annual meeting, which was filed with the Securities and Exchange Commission on April 28, 2006. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the proxy statement, the Schedule 13E-3 transaction statement and other relevant materials to be filed with the Securities and Exchange Commission when they become available.