Here is a great tool for teaching public speaking, interpersonal communication, interviewing, small group communication, and probably a lot more. It’s a video website (www.videosurf.com) that will enable you to locate videos of speakers, television shows, news programs, and just about anything for which there’s a video. The site provides an easy way to locate just the clip you want (and may wish to assign for class discussion). It's still in beta but definitely worth a close look.