Professor Emeritus, University of Southern California, 2002-

Oxford Martin Fellow, University of Oxford, 2013-

Senior Fellow, Oxford Internet Institute, University of Oxford, 2014-

Research Fellow, Quello Center, Michigan State University, 2018-

James H. Quello Professor of Media and Information Policy and Director of the James H. and Mary B. Quello Center at Michigan State University, 2014-18

Affiliated Faculty Member, Institute for Public Policy Research (IPPSR), Michigan State University, 2016-18

Professorial Fellow, Balliol College, 2002-14

Professor of Internet Studies, University of Oxford, 2002-14

Professor, The Annenberg School for Communication, USC (with a joint courtesy appointment in USC’s School of Policy, Planning, and Development), 1990-2002

Associate Professor (with tenure), The Annenberg School for Communication, USC, 1983-89

Associate Professor, The Annenberg School for Communication, University of Southern California (USC), 1980-82

Associate Professor, School of Public Administration and Urban Studies, San Diego State University, 1978-80

Assistant Research Political Scientist, Public Policy Research Organization (PPRO), University of California, Irvine, 1974-78

Assistant Professor, Department of Political Science, University of South Florida, Tampa, 1973-74

Instructor, Department of Political Science, State University of New York at Buffalo, 1972-73

VISITING AND TEMPORARY APPOINTMENTS

Visiting Professor, Media and Communication Department, Leeds University, 2018-

Guest Professorship, Department of Politics and Management, Universität of Konstanz, Germany, 2013

Director, Oxford Internet Institute, University of Oxford (re-appointed from 1 October 2008 for a second 5-year term, stepped down October 2011), 2002-11

National Director, Programme on Information and Communication Technology (PICT), Economic and Social Research Council of Britain,  1993-95

Visiting Professor, Department of Human Sciences, Brunel University, 1993-95

Fulbright Scholar and Visiting Professor, Department of Human Sciences, Brunel University, UK, 1986-87

Visiting Research Political Scientist, PPRO, University of California (UC) Irvine, 1979-82