An official web site of the U.S. Government contains over 378,500 raw data and geospatial datasets from over 180 agencies. The Data.gov site has an interactive platform which permits the user to search, filter, and explore before downloading and creating charts and maps.

The University of Wisconsin's Data and Program Library Service's Internet Crossroads contains over 650 annotated links to data-related resources on the Internet.

Contains social science data curated and archived by the Odum Institute Data Archive at UNC. Some key collections include the primary holdings of the Louis Harris Data Center, the National Network of State Polls, and other Southern-focused public opinion data.

An open source web application to share, preserve, cite, explore, and analyze research data.