NU's Licensed Polls
- iPOLLDatabase of the Roper Center at Cornell University. Provides data from national opinion polls, 1935 to present.
- ICPSR (Inter-University Consortium for Political and Social ResearchICPSR is a membership based, non-profit data archive located at the University of Michigan. ICPSR provides access to polls in addition to other data resources.
About Public Opinion Polling
- AAPOR (American Association for Public Polling Research)
Check the dropdown at the top of the page for Standards/Ethics and Education/Resources for AAPOR tools and guides for researchers: