I love what I see with the Big Blue button, is there a was to record the session for playback for students ?
We would love to see it as well .
We're now working on adding record and playback to BigBlueButton; you can see the current specification here:
We don't have anything demonstratable yet -- we'll post updates when we're getting close.
Member of the BigBlueButton development team
Excellent work regarding the archiving feature! I would like to recommend adding a note to give an option to keep archives private as well. From my experience, not all presenters/instructors will want their content to be made publicly available for privacy reasons. You might have this already planned into the project and if so, perhaps make it an obvious expectation so instructor concerns can be take care of from the get go. Beyond this, you have done an incredible job scoping this out!
Yisit http://www.bigbluebutton.org/ for more information regarding recording and playback. In case if it dosent work, you may have a look at various other web conferencing services such as webex.com, gomeetnow.com, gotomeeting.com etc.