The Interactive Advertising Bureau (IAB) yesterday announced the addition of twenty-five new companies to its membership roster. Of the new members, twelve are new general members and thirteen are new associate members. New General Members include: Ah-ha.com, Fox News, Fox Sports.com, IDG, Kanoodle.com, Massive, Inc., Morningstar.com, New York Times Regional, Switchboard, Inc., Union-Tribune, US News and World Report and WorldNow. The general member category represents companies that are actively engaged in the sale of interactive advertising. New Associate Members include: Digital Envoy, Dotomi, eValiant, Hitwise, IM Services Group, iNET Interactive, Klipmart, Planning Group International, Range Online Media, RedSheriff, Real Branding, Revenue Science, Inc. and Zedo, Inc. Associate members represent the perspective of companies that support the interactive advertising industry (for instance interactive or digital marketing companies). IAB member companies account for over seventy-five percent of the ad revenue generated via interactive advertising in the United States. Since January 2003, the IAB has added fifty-one new general members and forty-four new associate members.