Covers: 2010- . Provides access to statistical data produced by U.S. Federal agencies, States, private organizations, and major intergovernmental organizations. There are over 52 billion data points available in charts, maps, views, rankings, time series and tables in the Data-Planet repository.

Covers: 1962- (some historical series are older). The Inter-University Consortium for Political and Social Research (ICPSR), established in 1962, maintains and provides access to a vast archive of social science data for research and instruction, and offers training in quantitative methods to facilitate effective data use. The ICPSR archive offers a large number of data sets on social attitudes, opinions, and behaviors, as well as census and other statistical sources.

Covers: 1789- .An online research tool designed to provide access to current and historical census data, election results, and demographic information. It covers US census and electoral history - at the county level - from 1790 to 2010, as well as more recent data from the American Community Survey , the Religious Congregations and Membership Study (RCMS), and carbon emissions data.