By Mark Poster
By Abram De Swaan (University of Amsterdam)
By Alex Callinicos (King s College, London)
By Adam Swift
By Martin Albrow (State University of New York - Stony Brook)
By Claus Offe
By David Beetham (University of Leeds)
By Urs Bitterli, R. Robertson
By Martin Richards, Paul Light
By Anthony Giddens (London School of Economics and Political Science)
By Hank Johnston (San Diego State University)
By Polity
By Scott F. Aikin, Robert B. Talisse
By Judith Ennew
By J. S. La Fontaine
By Ken Browne
By Richard Rose (University of Strathclyde), William Mishler (University of Arizona), Christian Haerpfer (the Paul Lazarsfeld Society, Vienna)
By Donatella della Porta (European University Institute)
By Gerard Delanty (University of Liverpool)
By Susan J. Hekman (University of Texas at Arlington, USA.)
By Jonathan Holslag (Free University of Brussels)
By Mary Lyndon Shanley (Vassar College), Carole Pateman (University of California at Los Angeles(UCLA))
By Frank Vibert (European Policy Forum)
By Jeremy Rifkin
By Albert Weale (University of East Anglia)
By Jeffrey Haynes (London Metropolitan University)
By IPPR (Institute for Public Policy Research)
By Didier Fassin (Institute for Advanced Study, Princeton University, USA)
By Giddens, Anthony