Using Audiobook Podcasts to Promote a Book

If you haven't seen it yet, here's a link to a new York Times story about how authors are starting to use quicky audio versions of their books to help sell them. Some companies are recording audio versions of books that might never make it into print. I think this is notable because it shows another aspect of how publsihers are losing the advantages that economic scale once gave and how authors might consider becoming publishers in their own rights and more successfully funding their own businesses.