There is a very interesting set of posts you should read about YouTube. First is Fred Wilson's post about how YouTube kicked Google's ass by offering improved features that enable the service to really take off. The second is Jason Calacanis' response, saying that YouTube won the battle by stealing content. It is an interesting debate that comes in many different flavors, and won't be resolved anytime soon. If you want to comment on it, please do so on one of the original posts, not here.