1. Annenberg School for Communication and Journalism, University of Southern California, Los Angeles, CA, USA
2. Spiegel Research Center, Medill School of Journalism, Media, Integrated Marketing Communications, Northwestern University, Evanston, IL, USA
3. S.I. Newhouse School of Public Communications, Syracuse University, Syracuse, NY, USA
4. Amsterdam School of Communication Research (ASCoR), University of Amsterdam, Amsterdam, Netherlands