Listen to a lecture on your iPod
Whether you overslept and missed your 10 a.m. history lecture entirely or just dozed off during it, there may be an easier way to find out what your professor had to say about the Bubonic plague than borrowing your friend's notes. Apple's iTunesU has made available more than 200,000 educational audio and video files, many of which you can download for free to your iPhone, iPod or computer. See if your school has joined the iTunesU network and what course materials it has made available, and to whom. Apple notes that many schools choose to create both an internal site with a greater amount of course materials available exclusively to enrolled students with a user account and password; and an external site that provides a publicly accessible subset of those resources. Check out this list of participating colleges to get started.