What a great opportunity to brush up on controversies in Astrophysics, Game Theory, or France since 1871. Apple and Yale University have partnered to bring complete Yale courses to iTunes U and they are free for the clicking.
Apple was already offering significant quantities of lectures and interviews from Yale, but now complete courses are being offered for free. For now, there are 13 complete courses online, one subject area is composed of about 40-50 separate podcasts. That's a lot of information and precious knowledge.
If learning about the American Novel since 1945, or Biomedical Engineering is your thing, click right on over. There is probably something on the list you'll find interesting, to say nothing of the many great lectures.
The twists and turns of the digital revolution have been breathtaking to watch. From my home, an office, sitting at an airport, or riding along in a car, bus, plane or train I can take my favorite music, movies, or listen to experts relate the latest discoveries about Black Holes of the history of Psychology. What a world.