It is interesting to note that Khan Academy even has playlists interesting for startups: http://www.youtube.com/user/khanacademy#p/c/CADCB4565CFACEBF

It covers the more financial part of it (equity, dilution, and things like that).

He has an MBA from Harvard and has worked in investment. I'm more surprised he has courses on Biology and History.

Sal is proof that you don't need a degree in the a subject to be able to teach it.