Hereunder find websites to research centers and professional organizations.
American National Election Studies (ANES)
Annenberg Public Policy Center
Association of Political and Public Affairs Professionals
CMPA: Center for Media and Public Affairs
Center for Political Communication and Civic Leadership
Commission on Presidential Debates
Pew Research Center for the People
Political Advertising Resource Center (PARC)
Julian P. Kanter Political Commercial Archive (formerly the Political Communication Center, University of Oklahoma)