Where can you get data to use in a GIS? The UM Libraries have geospatial data in the collections, many websites have free data, and data can also be purchased.
The Environmental Data Explorer is the authoritative source for data sets used by UNEP and its partners in the Global Environment Outlook (GEO) report and other integrated environment assessments.
Historical Statistics of the United States has long been the standard source for quantitative indicators of American history. Includes statistics from over 1000 sources.