1. Department of Media and Communications; London School of Economics and Political Science; London WC2A 2AE UK
2. Department of Social Sciences; University of Akureyri; IS-600 Akureyri Iceland
3. Estudis de Ciències de la Informació i de la Comunicació; Universitat Oberta de Catalunya; Barcelona 08018 Spain
4. School of Media; Communication and Sociology, University of Leicester; LE1 7JR Leicester UK
5. Behavioural Science Institute; Radboud University Nijmegen; 6526 GD Nijmegen Netherlands