Previously broadcast web sessions, recorded and available for viewing on demand. Can combine video of the presentation along with any supporting materials used during the session, or blog discussions after the session.
http://baselinescenario.com/2008/12/03/recorded-webcast-of-yesterdays-mit-class/
Advantages:
- Boost retention
- Enable students to review complicated material repeatedly at their convenience
- Teach once and reach multiple audiences
Can be a recorded interview/guest appearance. If by phone/audio only, can present a photo of the speaker as they do on TV news broadcasts.
Guest interview – the instructor interviews a guest on a preselected topic.






