PrivaSeek, Louisville, Colo., has named Larry Lozon as its CEO. He was a former senior vice president and director of General Motors' Cyberworks, Detroit ... Webstakes, New York, announced five appointments to the company's executive management team: co-founders Steven Krein and Daniel Feldman were named CEO and president, respectively; Joseph Lamport was named vp of partnership services; Neil Somerfield has joined as vp of marketing; and Chris Bragas was named chief financial officer ... Engage, Andover, Mass., has named Betsy Zikakis vp of marketing. She was with Open Market, Burlington, Mass. ... Barry Layne was named vp of programming and production at FasTV, the Los Angeles-based online video search aggregator. Layne previously served as lead Internet executive at Cendant Software (now Havas Interactive).