Viacom is suing Google over unauthorized video clips on Google's recently acquired YouTube. YouTube fans record clips from their favorite shows (including many shows owned and produced by Viacom), and post them on YouTube for other people to watch. Part of what is going on is the fact that Viacom just bought into Joost, a YouTube competitor that will carry all of Viacom's content. So the lawsuit has two purposes: protect Viacom's intellectual property but also drive people to Joost. Viacom wins, and Google/YouTube loses. It is a clash of the titans, and Google has no traction here; YouTube has relied heavily on unauthorized use of copyrighted material.