Academic & Non-Profit Data Archives
Roper Center for Public Opinion Research
University of Connecticut
Social science polls, presidential approval ratings and election analysis. National Election Studies
University of Michigan
Politics and electoral behavior.
Institute for Research in Social Science
University of North Carolina at Chapel Hill
Includes Carolina Polls, Louis Harris & Associates Polls, southern polls and historical state data.
Data on the Net
University of California at San Diego
Guide to more than 800 Internet sites of social science statistical data.
Inter-university Consortium for Political and Social Research
University of Michigan
Established in 1962, ICPSR is home of "the world's largest archive of computer-based research and instructional data for the social sciences."
American Association for Public Opinion Research
"Code of Professional Ethics and Practices" and articles from "Public Opinion Quarterly."
National Network of State Polls