Washington, DC – Thirty-three research institutions, associations, and foundations in the U.S., Canada, and Mexico have made a commitment to Open Access to research by signing the Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities. These top private, public, and non-profit organizations join nearly 300 more from around the world in another clear sign of the growing demand for change in the way scientific and scholarly research results are communicated and maximized. The announcement is made in conjunction with the ninth Berlin conference, at the Howard Hughes Medical Institute, which opened today.