The two resources that I want to mention, just so I don't forget, but also in case anyone is unaware of them are:
A place to list books and provides checkout and a variable pay scale that allows buyers to "name their price" with minimums and a small percentage going to LeanPub. Also might provide a little exposure too.
Leanpub is cool and provides a way for digital downloads...but Lulu provides relatively cheap cost printing of books. So a way to do hard copies of the books that is affordable.