The Syllabus for LIBR559K, the Open Access Class, which I teach at the University of British Columbia's School of Library, Archival and Information Studies, for May-June 2008, has been posted.
The Required and Recommended readings and resources would be a good starting point for anyone wanting to learn about open access.
Another good starting point is Dean Guistini's Top Five (5) Ways for Librarians to Contribute to Open Access (OA) Movement