College of William and Mary, University of Michigan at Ann Arbor - Department of Political Science, Ohio State University (OSU), Stony Brook University, UC San Diego Division of Social Sciences, University of California, San Diego (UCSD), Facebook, Inc. and Facebook, Inc.

College of William and Mary, Ohio State University (OSU), University of California, San Diego (UCSD), University of Michigan at Ann Arbor - Department of Political Science, UC San Diego Division of Social Sciences, Stony Brook University, Facebook, Inc. and Facebook, Inc.