If you are really interested in understanding the economics behind free-content business models, start by watching Wired editor Chris Anderson's appearance on the Charlie Rose show (video below).




Then get his book, "Free: The Future of a Radical Price." His summary of the theme in Wired is here. You can buy it, but of course it's also available free on Google books, or a free audiobook you can download (285MB zip file) or listen to here: