GIS

Updated regularly. Provides easy access to historical census data for the United States. Allows users to visually analyze and understand the demography of any part of the United States with access to the following:

* Interactive thematic maps of historical census data
* Customized reports for any chosen area or areas (including aggregates)
* Complete coverage of the United States, down to neighborhoods and streets
* Simple navigation buttons and a find tool make it easy and efficient to study neighborhoods

Users can examine geographic areas while selecting the type of data to be shown, such as population density or income level. The corresponding data tables are also available.

This online research tool is designed to provide quick and easy access to current and historical US census data and demographic information from 1790-2010, generating maps, data visualizations, and spreadsheets. It creates reports at all geographic levels, including the state, county, census tract, block group, zip code, and census place to show population density, income level, and more. Visually analyze and understand the demography of any part of the United States with access to interactive thematic maps of historical census data. Data sources include the U.S. Decennial Census, the American Community Survey, the FBI Uniform Crime Report, American election results, Religious Congregations and Membership Study (RCMS, updated continuously), Vulcan Project carbon emissions data, U.S. Business Patterns, and County Health Rankings and Roadmaps Program Data. International data is sourced from the United Kingdom Census, Canadian Census, Eurostat, World Development Indicators, and Irish religion and population data. 

Produced by the American Geosciences Institute, GeoRef contains bibliographic records for geosciences literature from around the world. GeoRef contains 3,500 indexed journals covering a wide spectrum of geoscience literature and 3.8 million books, maps, government reports, conference papers, theses, and dissertations, covering the geology of North America from 1666 to the present, as well as global coverage dating back to 1933. Subjects include Economic Geology, Environmental & Engineering Geology, Geophysics, Hydrology, Paleontology, Petrology, Marine geology & Oceanography, and Mineralogy.

The Publications Warehouse provides access to 170,000+ official publications written by United States Geological Survey scientists from the last century of the bureau's history. These publications include, but are not limited to, USGS publication series, journal articles, books, book chapters, other government and nongovernment publications, cooperator publications, and conference proceedings. Current USGS Series, which are active and being added to by the USGS Scientific Publishing Network, include: Circular, Data Report, Fact Sheet, General Information Product, Open-File Report, Professional Paper, Scientific Investigations Map, Scientific Investigations Report, and Techniques and Methods.

Landsat imagery, courtesy of NASA (National Aeronautics and Space Administration) Goddard Space Flight Center and the United States Geological Survey (USGS/NASA Landsat) is the longest continuous space-based record of Earth's land in existence, spanning 1972 to the present. This gallery includes all Landsat images published on the Earth Observatory, Visible Earth, and Landsat Science web sites from all seven Landsat satellites. Landsat data offer information essential for making informed decisions about Earth's resources and environment.

The Inter-University Consortium for Political and Social Research maintains an archive of quantitative social science data for research and instruction. Since 1962, ICPSR has collected and made available the datasets of many major government studies in their entirety, along with polls and surveys conducted by organizations and individual researchers. It covers a wide range of social science areas such as population, economics, education, health, social and political behavior, social and political attitudes, history, crime, aging, and substance abuse. Major datasets in ICPSR include the General Social Survey, World and European Values Survey, American National Election Studies, National Archive of Criminal Justice Data, Health and Medical Care Archive, the International Archive of Education Data, and many more.