Mario Diani is Professor of Sociology in the University of Trento. His publications include Social Movements (with Donatella della Porta, 2006), Social Movements and Networks (co-edited with Doug McAdam, 2003) and Green Networks (1995). He served as the European editor of Mobilization from 1997–2005 and has served on the editorial board of a number of journals, including Contemporary Sociology (2006–8) and, currently, Interest Groups and Advocacy and Quaderni di Sociologia.