1. Department of Communication, University at Buffalo, State University of New York, 333 Baldy Hall, Buffalo, NY, United States
2. Center for Information, Technology and Public Life, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
3. Department of Communication, Georgia State University, Atlanta, GA, United States
4. Department of Communication, Northwestern University, Evanston, IL, United States
5. College of Education, University of Massachusetts at Amherst, Amherst, MA, United States