If they keep sharing great content via courses, and make traditional education better (by replacing Blackboard), more power to them. I would have loved to have a tool like this when I was in school. My grades would have been better if I had access to old lectures to prepare for exams (though, I'm not sure how quickly instructors would be willing to post lectures). When I last used it 5+ years ago, Blackboard sucked... I'm assuming that hasn't changed. Anyone have more recent thoughts on that front?