Learnoutloud.com is a nice source for audio and video with many topics that deal with education. There is a mix of free and pay resources. Most are professionally produced. I did a search for “Lessig” and found 125 links to my favorite open-source-copyright lawyer.
The only problem I have with the site is that it favors Real Audio. I would not install that player on my machine for anything. Fortunately there are plenty of plugins that enable you to play RAM files in most of the popular players.
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