Major U.S. Polling Sources
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General Social Survey (GSS) - BEST BETTracks American attitudes and behaviors (since 1972).
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Gallup - BEST BETWidely cited polls with summaries, graphics, and trend data.
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Pew Research Center - BEST BETNonpartisan studies of politics, media, and society; includes downloadable datasets.
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American National Election Studies (ANES)Election studies and long-term data on public opinion (since 1948).
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Harris Interactive - The Harris PollReports on social and political attitudes, with analysis and methodology details.
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PollingReport.comCollects results from major polls by topic; includes survey details and margin of error.
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Public AgendaSurveys and issue guides on public concerns and policy.
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Roper Center for Public Opinion ResearchLarge archive of polls and survey questions.