Teleread recently published a blog post about the creation of an Open Source library of lower division college textbooks.
California is the leader again, innovating a means for college students to hold down some college costs. Important to note that due to the nature of the licensing the textbooks will be available for anyone to use. A provision is put on these licenses so that print versions of the books must be available for no more than $20.
http://www.teleread.com/
http://arstechnica.com/tech-policy/2...rce-textbooks/
https://creativecommons.org/weblog/entry/34288