At the 2007 Educause conference, Diane Zorn described an online course in philosophy that she created.
Here are the main points that I got out of this podcast:
“The goal of distance education, in my experience, is not to replicate the in-class experience but rather to go beyond what is possible in a conventional classroom.”
She used Mediasite which provides a video of the instructor along with the corresponding Powerpoint files but with a little ingenuity, something similar to this could be done using Keynote, Garageband, and iMovie.
Using Video Streaming and Podcasting to Design Rich-Media Online Courses [29:25m]: Play Now | Play in Popup | Download