The University of Edinburgh has chosen Blackboard Collaborate as its virtual classroom. It provides Adobe Connect style tools with multi-way video and audio teleconferencing, particpants lists and profiles with hand raising and AFK indicators, and text chat with emoticons. A tools area can be used as a whiteboard with slide upload and markup by participants. It can also be used for application sharing and co-browsing. The session can be recorded and played back. Elements like the text chat, participants list and whiteboard contents can also be saved either during a live meeting or from a rercording.
One possibility for use could be to record a synchronised speaker and presentation, and make that available via the recording. Screen capture tools such as TechSmith Camtasia can be used to capture off a recording to allow for transcoding into a regular video format for other uses, YouTube, streaming, etc.