1. a Michigan State University, Telecommunication, Information Studies & Media (TISM) , Communication Arts & Sciences Building, East Lansing, MI, 48824, USA
2. b Ohio University, Sociology and Anthropology , Bentley Annex 109, Athens, OH, 45701, USA E-mail:
3. c University of Oxford, Oxford Internet Institute , 1 St Giles, Oxford, OX13JS, UK E-mail:
4. d Ohio University, School of Communication Studies , 43 W Union, Athens, OH, 45701, USA E-mail: