More on podcasting... "Should Professors podcast their lectures online?"

This question, "Should Professors podcast their lectures online?, " posed by John Palmer and quoted by Tyler Cowen at marginalrevolution.com is a pretty active discussion going on right now. Join in if you are interested. My take on this is no, few students will value the entire lecture on MP3 because it is not scanable and searchable. However, I think the market for 1 to 3 minute commentary might be very high and in class as Frequently Asked Questions support.