MediaSite By Sonic Foundry 

Record and deliver your online learning, interactive lectures and multimedia presentations automatically with Mediasite - the easiest, most reliable and most complete webcasting and knowledge management platform.
Your presenters teach, train or present as they always do, while Mediasite records everything they say and show and immediately delivers their multimedia presentation online for audiences to watch anytime, anywhere.

Learn More on the Sonic Foundry web site.

http://www.sonicfoundry.com/mediasite/