I don't know how many people have noticed, but PBS is now accepting Audio Courses from companies like the Teaching Company.  This decision has plusses and minusses ( I beleive the plusses outweigh the minusses).

Plus: Greater Access to these high quality College Level Courses taught by professor who have been acclaimed for both their knowledge and their communications ability.  All for only 2 Credits!

Minus: Buyer Beware: Before you order a classic like Dante's Inferno, check out all the book details-you could be ordering a class about the book rather the book itself.

I currently have:

Lost Christianities: Christian Scriptures and Battle over Authentication

and

The Vikings

Each Course consists of 12 to 18 audio Tapes, for just the same 2 credits as any audio book.  Please Note: Due to the high cost and heavy weight of these audio courses, these are the only 2 Items on my Shelf that I am NOToffering a 3 for 1 deal on.