- ANES Guide to Public Opinion and Electoral Behavior
Cornell Institute for Social and Economic Research Data Archives provides links to various polls
- iPOLL provides access to nearly half a million public opinion survey questions, 1935 to date. Enter MU e-mail address to use database.
- Pew Research Center
Public Agenda A nonprofit organization that conducts opinion surveys on current issues
- Roper Center for Public Opinion Research datasets
- World Public Opinion