Last summer the American Physical Society (APS) made its online journals freely available to public libraries, an initiative that was very well received. On 9 February, 2011 the Society announced that it will also make its journals freely available to high school students and teachers in the U.S. The journals are Physical Review Letters, Physical Review, and Reviews of Modern Physics, a collection constituting over 400,000 scientific research papers. This initiative is intended "as a contribution to public engagement with the ongoing development of scientific understanding."
The news release.