"I'd be surprised if 261 or 361b are put online, since they're not usually recorded and (at least when I took them) have between 10 and 20 students."
Isn't that the exact reason they should be put online though? If there are say 5,000 students worldwide (vs 150,000 for the AI course) that is still a massive multiple. I sincerely hope Stanford doesn't stop at the "Introduction to X" courses. The upcoming "Probablistic Graphics Models" class seems reasonably advanced, and is hopefully a harbinger of things to come.