I started my online videos using blip.tv but videos kept breaking and they kept turning closed captioning on and off. I have a deaf student and this became a real show stopper. When I switched to YouTube I was pleasantly surprised on how friendly the user control panels were and how easy (and fast) it is to maintain my video library. (Here's my channel: http://www.youtube.com/user/peterMankato?feature=mhee). The features on YouTube far surpass blip.tv for me.