Presented at Open Access: Maximising Research Impact, April 23 2009, New Bulgarian University Library, Sofia. Open access for researchers: enlarged audience, citation impact, tenure and promotion. Open access for policy makers and research managers: new tools to manage a university’s image and impact. How to maximize the visibility of research publications, improve the impact and influence of the work, disseminate the results of the research, showcase the quality of the research in the Universities and research institutions, better measure and manage the research in the institution, collect and curate the digital outputs, generate new knowledge from existing findings, enable and encourage collaboration, bring savings to the higher education sector and better return on investment. What are the key functions for research libraries?