The Association of College and Research Libraries has sent a letter of support to SCOAP3.
Here's an excerpt:
On behalf of the Association of College and Research Libraries (ACRL), a division of the American Library Association (ALA) representing over 13,000 academic and research librarians and interested individuals, I am writing to express interest and support for SCOAP3, the Sponsoring Consortium for Open Access Publishing in Particle Physics’ effort to facilitate open access publishing in High Energy Physics (HEP). . . .
ACRL believes that SCOAP3 is a valuable addition to the heterogeneous mix of strategies being undertaken by scholars, publishers, libraries, and others to ensure the future of high-quality journals. SCOAP3 is unique in its explicit goals to unite researchers and libraries and to partner with publishers so that aggregated financial contributions will support HEP publishing, make the results available at no cost to any reader any where, and serve as a potential model to other disciplines.
Therefore ACRL encourages its members to consider joining the SCOAP3 effort when appropriate, e.g. through an institutional or consortial "expression of interest" (as outlined at http://www.scoap3.org/), providing education and outreach about SCOAP3 to their faculty, library staff and administrators, and finding other ways to analyze and support SCOAP3 where possible.