Some of the lessons/code samples have videos, like this Hilbert Curve one.
@JohnAskew Where do we rally? The internet? I don't know, but Khan Academy has a good reputation and excellent funding (i.e. Bill Gates). I hope MSDN and C9 take a look at these ideas.
@MasterPie Also cool, and targeting additional needs; I can imagine the best of both worlds combining in the future.