So confusing, all these online video combinations. Here's an easy visual reference guide. Google has since last year owned Youtube, the most popular video sharing site, which has made stars of amateur performers such as lonelygirl15. Apple boss, Steve Jobs, sold his side project, the Pixar animation studio, to Disney, which also owns ABC, the network that runs shows such as Desperate Housewives and Lost. Disney's usually the first of the Hollywood studios to put movies and TV shows in Apple's iTunes store. And, today, an alliance of convenience against Google: between News Corporation, which owns the Fox network, NBC, which owns Universal Studios — and three of the search engine's online rivals. Were this a movie, one could call it Google against the seven dwarves. As yet unaligned: Viacom, CBS and several other media companies. The chart: after the jump.

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