Open Access is a growing international movement that uses the Internet to throw open the locked doors that once hid knowledge. It encourages the unrestricted sharing of research results with everyone, everywhere, for the advancement and enjoyment of science and society. Open Access is the principle that all research should be freely accessible online, immediately after publication, and it’s gaining ever more momentum around the world as research funders and policy makers throw their weight behind it.
Open Access Week is an opportunity to broaden awareness and understanding of Open Access to research, including access policies from all types of research funders, within the international higher education community and the general public. The now-annual event has been expanded from a single day to accommodate widespread global interest in the movement toward open, public access to scholarly research results. (From: http://www.openaccessweek.org/)