ROARMAP (Registry of Open Access Repository Material Archiving Policies)
http://www.eprints.org/openaccess/policysignup/

Most important, an Open Access (OA) self-archiving policy for systematically filling repositories with their target content needs to be adopted and implemented (and registered, so as to be seen and emulated by other institutions). ROARMAP tracks the growth of institutional self-archiving policies. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.