Wikimedia
Wikipedia: Podcasting
Overview of the Internet broadcasting method. Also contains the origin of podcasting, how the term came to be coined, and other uses of podcasting.
Smithsonian Institution
Lemelson Center: Tracing the Roots of America's Motion Picture Industry
In the late 1800's, Thomas Edison and his fellow inventors were key in the American film industry's boom.This web site provides a podcast and accompanying transcript tracing the roots of the film industry in America. Podcast [21:27]