http://www.amazon.com/Web-Conferencing-Quick-Start-Guide/dp/1448649781/ref=sr_1_1?ie=UTF8&s=books&qid=1250795732&sr=8-1
As a test, they had a non-technical relative of one of our testers equipped with a a Dell E6400 with Windows XP, complete with built-in camera & microphone. This relative was able to start a multi-point meeting in 17 minutes, was able to share her desktop and present an online presentation (Microsoft PowerPoint) in under 25 minutes, and even started using the voting and whiteboarding features within 30 minutes - all of it witnessed but uncoached.
