NEW YORK (AdAge.com) -- Although still widely thought of as just a food marketing giant, Kraft Foods is ratcheting up its already-substantial activities as a serious magazine and web content publisher. Its innovative moves in this area are one of the reasons that VP for Global Media Services Mark Stewart was honored as an Ad Age Media Maven this year. In his remarks at Wednesday's ceremony, he underscored Kraft's determination to do even more of what it formerly depended on traditional magazine publishers to do.