ROAR is the Registry of Open Access Repositories
http://archives.eprints.org/eprints.php?action=browse

ROARMAP is the Registry of Open Access Repository Material Archiving
Policies http://www.eprints.org/signup/fulllist.php

The purpose of ROARMAP is to register and record the open-access
policies of those institutions and funders who are putting the
principle of Open Access (as expressed by the Budapest Open Access
Initiative and theBerlin Declaration) into practice as recommended by
Berlin 3 (as well as the UK Government Science and Technology
Committee). http://www.eprints.org/berlin3/outcomes.html
http://www.publications.parliament.uk/pa/cm200304/cmselect/cmsctech/399/39903.htm

Universities, research institutions and research funders:

If you have adopted a mandate to provide open access to your own
peer-reviewed research output you are invited to click here to
register and describe your mandate in ROARMAP.
http://www.eprints.org/openaccess/policysignup/sign.php#fr

(For suggestions about the form of policy to adopt, see here.)
http://openaccess.eprints.org/index.php?/archives/494-guid.html

Registering your OA mandate in ROARMAP will:

(1) record your own institution's commitment to providing open access
to its own research output,

(2) help the research community measure its progress (see growth
curve, provided by Alma Swan in Oasis) in providing open access
worldwide, http://www.openoasis.org/index.php?option=com_content&view=article&id=144&Itemid=338

and

(3) encourage further institutions to adopt open-access mandates (so
that your own institution's users can have access to the research
output of other institutions as well).

Sample Institutional Self-Archiving Mandate
http://openaccess.eprints.org/index.php?/archives/71-guid.html

"For the purposes of institutional record-keeping, research asset
management, and performance-evaluation, and in order to maximize the
visibility, accessibility, usage and impact of our institution's
research output, our institution's researchers are henceforth to
deposit the final, peer-reviewed, accepted drafts of all their journal
articles (and accepted theses) into our institution's institutional
repository immediately upon acceptance for publication."

To register and describe your mandate, please click here:
http://www.eprints.org/openaccess/policysignup/sign.php#fr