Leslie Chan is a Professor in International Development Studies and the Associate Director of the Centre for Critical Development Studies at the University of Toronto. An early practitioner in the use of the Web for learning, knowledge exchange and partnership building, Professor Chan is particularly interested in the roles of network openness and control in the flow of knowledge and their impact on local and international development. Since 2001, Professor Chan has been directing Bioline International, a collaborative platform based in CRIA Brazil for open access distribution of research journals from close to twenty developing countries. The goal is to better understand the design, structural and policy barriers that impede knowledge production and exchange. Professor Chan also co-founded the Open Access Scholarly Information Sourcebook (OASIS) and the Global Open Access Map. He is the Principal Investigator of the Open and Collaborative Science in Development Network, funded by the IDRC in Canada and DFID in the UK.