Academic Earth, and the future of education?

An excerpt from Farhad Manjoo's column at Slate (read the entire one; it is neat):

I live in San Francisco, but I attended all of these classes without ever leaving my house, often while I was supposed to have been doing something else. Over the last few years, snooty universities across the country have been filming their lectures and putting their course material online. A few months ago, Academic Earth, a startup founded by a young Yale graduate named Richard Ludlow, began collecting these videos and packaging them into full-length courses. The result is a geeky procrastinator's dream.

It's been years since I was in school, and I've got few fond memories of going to class. But Academic Earth is unexpectedly irresistible. It's like Hulu, but for nerds. Many of the professors are great teachers, and, unlike in college, I can go to class on my own time—which ensures that I'm not too sleepy to understand what's going on. Academic Earth achieves something like what Google was trying to pull off with Knol, the messy encyclopedialike project that the search engine launched last year. Both sites let you learn from recognized experts rather than from the anonymous crowds who populate Wikipedia. But Academic Earth bests Knol, because the experts here aren't just throwing up their opinions whenever the mood strikes them. Instead, they're doing their jobs—teaching in actual classrooms, at recognized universities, to real, live, students.