Stanford just put up a bunch of faculty lectures, discussions, interviews, and student-created music up on iTunes. There's supposedly some video up too, though I haven't found that yet. Free as in beer. Content to expand in the coming months.
Although select lectures will be restricted to tuition-paying students, I think this is really cool. It's nice to see land-grant universities such as Stanford actively and boldly contributing to the public good.
I'm currently listening to "Stress and Coping: What Baboons Can Teach Us" by Robert Sapolsky. I can't say that I agree with all of it, but it's interesting.