To college freshmen, they're just another reason to sleep late. But for the rest of us, the explosion of course podcasts – audio and video – are an invitation to enter the classrooms of Harvard, UC Berkeley, and dozens of other institutions. The only problem: finding lectures that won't make you wish you'd downloaded Ask a Ninja instead. To help, we sorted through hundreds of offerings and picked our faves for a winter-quarter playlist. (All are free and, except for CERN's series, available from the iTunes Store.) Load up a few the next time you feel like jogging to grand unified theory instead of Grand Funk Railroad.
– Jeff Howe

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Podcast Lectures 101