This looks like a new breed of webcasting opportunities:

http://www.programmableweb.com/

Audio Mashups http://www.programmableweb.com/mashups/directory/1?q=audio

Video Mashups http://www.programmableweb.com/mashups/directory/1?q=video

Taxonomy upgrade extras: * webcast * audio * video * e-learning * second life * elearning * voice * mashup * webcam