From the UBC Academic Search – Google Scholar Blog:

Top Five (5) Ways for Librarians to Contribute to Open Access (OA) Movement

1) Increase your own knowledge of OA issues; visit Open Access News daily;
2) Support OA by developing ‘information kits’ in your library organization to raise general awareness of open access principles and practices;
3) Develop ‘self-archiving‘ process to increase records in local repositories;
4) Show your solidarity by featuring open access journals on your library website (thanks to John Willinsky for that idea); do displays; handouts; presentations etc.
5) Deposit papers and presentations into E-LIS – the open archive for librarians and information specialists, or other digital archive – PubMedCentral, for example.