Ding Fangguan, also known as Gu Chaun, is a researcher and assistant director of the Institute for Information Society Studies (IISS) in the School of Social Sciences at China University of Political Science and Law. His research interests include internet freedom, freedom of press, and human rights issues in China. His publications on these topics have been used by the United Nations High Commissioner for Refugees (UNHCR), Reporters Without Borders, Amnesty International, and other international organizations. At Columbia, his research covered intellectual property, privacy, and "The Rise of Chinese Internet Citizens Rights Movement."