Help me find longer lectures on Youtube. Is there a browsable index of what's on posted on Youtube (something more detailed and descriptive than the left sidebar on the homepage, the channels page, or the few video links that show up on any given page)? I'd like to find something to watch on my ipod at the gym, something to hold my interest for fifteen to sixty minutes, but not videos of laughing babies, music videos or teenagers beating up each other. Doing a search for "university lectures" leads me to the several UC Berkeley lecture series and the inspiring lecture from the fellow with pancreatic cancer. Is it possible to move beyond that into other college lectures or even multipart courses (arts or science), discussions, longer films, the unexpected? How do I find them?
Is there a video sharing site that offers better visual quality than YouTube? [more inside]