If you have 10 minutes today, I strongly recommend watching this video from the University of California about their proposed university-wide open access policy. Universities with institutional repositories need policies like this to make sure their repositories can serve their intended purpose. Here at CUNY, we’re working on creating a repository — pretty soon, we’ll need to start working on a policy as well!
Also worth a look is the new guide from the Harvard Open Access Project: Good Practices for University Open Access Policies. If you don’t have time to read the whole thing, at least scan the Talking about a Policy page — the right page for the phase we’re in here at CUNY!