Free, catalogued, digital books

The University of Michigan's OAIster (Find the pearls) Project is worth checking out. It has full access to nearly 20 million digital books, with the option of adding them to your own catalog for your patrons. I first became aware of it from a genealogy blog on my RSS feeds, and I have to say, it's impressive. Contributors are from over 1000 universities and repositories worldwide. Here's the link: http://www.oaister.org/about.html