Subject Librarian
Datasets
Datasets are collections of data, numeric or textual, arranged in tables. They are frequently used by statisticians to practice methods of analysis or by computer scientists to test new software applications.
Free Datasets Available on the Web
These datasets are public and available for download.
Some restrictions about use apply; be sure to read the fine print.
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UCI Machine Learning RepositoryUniversity of California at Irvine maintains several hundred data sets. The repository is searchable by data type, size, and other characteristics.
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InfochimpsIncludes data sets for purchase and free. Data sets are organized by tags.
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FactualProvides free and low-cost data sets intended to aid software developers. Interesting entertainment and popular culture data sets.
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Data.govGovernment and public sector data from various agencies. Also includes geodata.
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Research PipelineA privately-maintained site with a nice bibliography of freely available data sets.
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Pew Research CenterThe Pew Research Center is a non-partisan organization that conducts surveys about various social topics including media, religion, and American life.
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Statistical Resources on the WebA site maintained by the Government Documents Center of the University of Michigan libraries. A nice list of government and private information about business, consumers, demographics, health, weather, and a variety of other topics.