I noted this in a post by Joanne Jacobs:

I think higher education for working adults -- for example, teacher training for people working as teaching aides or novice teachers -- will go mostly or totally online in the next 10 years. It just makes sense. For 18- to 22-year-olds, e-learning will be a supplement. But nobody's going to show up in person to a large lecture class when they can download the lecture to their computer or iPod.

Allow me to question this: If you think there's no difference between being in a large lecture hall experiencing a lecture and hearing it on the radio while roller-blading, you would think the above is true. That would mean the same as there being no difference between listening to a Beethoven symphony in person or on your headphones.

Sorry, 't'ain't so. I have particular things I believe will podcast -- and I'm working on them -- but not a whole lecture on IS-LM analysis. (Yes, I still teach that stuff.)