Open+Courseware

Massachusetts Institute of Technology: OpenCourseWare Initiative http://ocw.mit.edu/OcwWeb/web/home/home/index.htm

OpenCourseWare Consortium http://www.ocwconsortium.org/

Open University: Open Learn http://openlearn.open.ac.uk/

Rice University: Connexions http://cnx.org/

Open Educational Resources Commons http://www.oercommons.org/