The Niels Bohr Library & Archives (housed at the American Institute of Physics) website provides access to a unique (physics-related) collection of oral history interviews.  The site contains transcriptions of several hundred interviews, along with a selection of audio clips.

Oral History Interviews at the Niels Bohr Library & Archives

The Messenger Lectures include seven videos of Dr. Richard Feynman speaking on physics at Cornell University in 1964.  The videos are here presented in Microsoft’s Project Tuva (requires browser plugin download), which enhances the videos with closed captions, note-taking capabilities, links to related resources, video navigation functions, and more.   The lectures are excellent (each of the seven videos is over 45 minutes, but less than an hour) and Project Tuva is an interesting new tool.

http://research.microsoft.com/apps/tools/tuva/index.html (Or click on image below)