1. School of Information Studies, Syracuse University, Syracuse, NY, USA
2. Social Media Lab, Ryerson University, Toronto, Canada
3. Ted Rogers School of Management, Ryerson University, Toronto, Canada
4. The iSchool, University of British Columbia, Vancouver, Canada
5. Department of Media Studies and Journalism, University of Groningen, Groningen, Netherlands
6. School of Information, University of California, Berkeley, CA, USA