OpenDOAR is an authoritative directory of academic open access repositories. Each OpenDOAR repository has been visited by project staff to check the information that is recorded here. This in-depth approach does not rely on automated analysis and gives a quality-controlled list of repositories
Hosted by the University of Pennsylvania, this site includes over 40,000 full-text books, arranged by LC classification. Books included generally are: 1) not copyrighted under the Berne Convention, 2) out of copyright, 3) posted with permission for non-commercial use, or 4) posted as part of existing licensing provision.
European network of open access books.
Read Barbara Fister's article in Inside Higher Ed: Open to Change: How Open Access Can Work
David Lewis has made a budgetary argument for open access: Library Budgets, Open Access, and the Future of Scholarly Communication
Open Access Publishing in Science in Communications of the ACM
A Library Journal article about the funding of open access