| Europa Public Opinion Analysis | Summaries and full reports, 1973-2005. |
| FOM: Public Opinion Foundation | Result of public opinoin surveys in Russia, 1995-present. |
| Health Poll Search | Henry Kaiser Family Foundation. 29 topics and >300 subtopics. More than 60,000 questions on health issues from health care surveys that have included questions on health. |
| Mass Behavior in New Democracies | Strathclyde University. Statistics and survey results from Russia, European countries, and Korea. |
| Pew Research Center for the People & the Press | Surveys, 1987 - present, regarding business, economics, politics, etc. |
| PollingReport | Poll data on topics of national political, economic, and sociocultural interest. |
| Roper Center | University of Connecticut. More than 10,000 survey files from polls from 100 countries and over sixty years. |