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This web site provides search and browsing access to abstracts and data sets in the world's largest archive of computerized social science data. Search or browse title of study, principal investigator, words in abstract, or study number. Browse major research categories.

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Provided by the Roper Center for Public Opinion Research at Cornell University, Roper iPoll is the largest collection of public opinion poll data with results from 1935 to the present. Roper iPoll contains nearly 800,000 questions and over 23,000 datasets from both U.S. and international polling firms. Surveys cover any number of topics including, social issues, politics, pop culture, international affairs, science, the environment, and much more. When available, results charts, demographic crosstabs and full datasets are provided for immediate download.

Features demographic research mapping tools that allow for demographic data analysis. The main goal is to visually display the demographic change that has occurd inthe U.S. since 1790 through present down to the county level.

The World Bank Open Data site provides, "free and open access to data about development in countries around the globe." Among the datasets included are the World Development Indicators (WDI), Africa Development Indicators (ADI), Gender Statistics, Worldwide Governance Indicators, Global Economic Monitor (GEM), Education Statistics, etc. Most of the data is available in Arabic, French, Spanish and Chinese in addition to English.