A Hacker Videos site (a place for intellectually stimulating videos)?
slater: Maybe try http://www.scivee.tv, which touts itself as "provid[ing] community tools for researchers of all levels to share their science, connect with their peers, and respond to scientific data. Researchers can see and hear scientists describe their scientific research, join specific interest communities, participate in scientific discussions, and create a comprehensive multimedia representation of their own research."