Tech Learning had a short but nice article on How To: Incoporate Multimedia into Documents. The most interesting part of the article was the few resources listed that provide access to educational media. Specifically, www.americanrhetoric.com. I really enjoyed the movie speeches. I might recommend Howard Beal's "I'm Mad as Hell" speech in Network.

I'm also interested in Digital Curriculum. I haven't used the service and I'm not sure of the cost, but perhaps it is a model that could be developed with eExtension.