Center for the Study of Democracy Data
Asia Data Archive--Center for the Study of Democracy
UCI Social Science Data
ICPSR - Interuniversity Consortium for Political and Social Research
International Data Archives (Norwegian page with global map)
American National Election Study (ANES)
Comparative Study of Electoral Systems (CSES)
General Social Survey (GSS)
World Values Survey (WVS)
International Social Survey Program (ISSP)
Panel Study of Income Dynamics (PSID)
Eurobarometer Reports (European Public Opinion)
Latin American Public Opinion Project

National/International Data Sources

U.S. Census Bureau
World Bank
United Nations
European Union
Statistics Canada
CIESIN

Other Data Sources

Statistical Resources on the Web
RAND Corporation
Historical Archives of the European Communities
PBS U.S. Democracy Page
Russian/American Cyberlibrary
sian Studies Virtual Library
Network of Democracy Research Institutes