Cong Li (PhD, University of North Carolina at Chapel Hill) is Associate Professor of Advertising at the University of Miami. He has published in a number of scholarly journals inside and outside the communication field, and has won the top paper award at national advertising and communication conferences.Don Stacks (PhD, University of Florida) is Professor of Public Relations at the University of Miami. He has earned numerous academic and professional awards for teaching and research. His publications include the Primer of Public Relations Research (Second Edition 2010) and A Practitioner’s Guide to Public Relations Research, Measurement and Evaluation (co-authored, 2010).

• Contents: Research Background and Methodology – Twitter – Facebook – YouTube – Google+ – The Big Four – Research Implications.

Cong Li (PhD, University of North Carolina at Chapel Hill) is Associate Professor of Advertising at the University of Miami. He has published in a number of scholarly journals inside and outside the communication field, and has won the top paper award at national advertising and communication conferences.Don Stacks (PhD, University of Florida) is Professor of Public Relations at the University of Miami. He has earned numerous academic and professional awards for teaching and research. His publications include the Primer of Public Relations Research (Second Edition 2010) and A Practitioner’s Guide to Public Relations Research, Measurement and Evaluation (co-authored, 2010).

• Contents: Research Background and Methodology – Twitter – Facebook – YouTube – Google+ – The Big Four – Research Implications.

Cong Li (PhD, University of North Carolina at Chapel Hill) is Associate Professor of Advertising at the University of Miami. He has published in a number of scholarly journals inside and outside the communication field, and has won the top paper award at national advertising and communication conferences.Don Stacks (PhD, University of Florida) is Professor of Public Relations at the University of Miami. He has earned numerous academic and professional awards for teaching and research. His publications include the Primer of Public Relations Research (Second Edition 2010) and A Practitioner’s Guide to Public Relations Research, Measurement and Evaluation (co-authored, 2010).

• Contents: Research Background and Methodology – Twitter – Facebook – YouTube – Google+ – The Big Four – Research Implications.