The ninth installment in the Berlin Open Access Conference Series, which convenes leaders in the science, humanities, research, funding, and policy communities around The Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities, will take place at the Howard Hughes Medical Institute on November 9 & 10, 2011. The conference, called “Berlin 9 Open Access Conference: The impact of Open Access in research and scholarship,” will focus on the role that open online access can play in accelerating the conduct and communication of scholarship, and the opportunities this presents to the funders, creators, and end users of this information.