NEW YORK -- VMIX, San Diego-based video services company, is powering a number of newspaper and local television station Web sites, including the Tribune newspapers. It continues to expand with a recent win with the Post-Newsweek television stations sites. At the Streaming Media East conference last week, I caught up with VMIX CEO Mike Glickenhaus. Mike explained the utility of his company's "white label" solution. Among a number of services is the approval and moderation of user-generated video. He explains the value of UGC to papers the importance of having this material properly managed. Andy Plesser, Executive Producer Less