One of the largest collections of research data in the country, centered at the University of Michigan, the ICPSR houses studies over decades . They range from basic census information to social opinion and marketing.
iPOLL is the world's most comprehensive, up-to-date source for current US public opinion data. Gallup Polls are some of the best known in the country and are also available through Roper. This resource was acquired with funds from the Library/IT Assessment.
Social Explorer provides access to current and historical census data and demographic information. Create maps and reports to better illustrate, analyze and understand demography and social change.
Key content in Social Explorer includes: over 40 billion data elements, 200,000 variables; 18,000 interactive maps; the entire US Census from 1790 to the present as it is available; annual updates from the American Community Survey; InfoGroup data on religious congregations; Religious Congregations and Membership Study; and Carbon Emissions Data. Users can create custom maps, download data, and export, save, and print maps and reports.