A resource which makes development data more visual. Uses many data sources such as the OECD, Worldbank, ILO, etc.

GADM is a spatial database of the location of the world's administrative areas (or adminstrative boundaries) for use in GIS and similar software. Administrative areas in this database are countries and lower level subdivisions such as states, provinces, departments, etc.

The GLCF is based at the University of Maryland and is a center for land cover science with a focus on research using remotely sensed satellite data and products to access land cover change for local to global systems. It provides both raster and shape files.

This is the resource website of the Map and Geospatial Information Roundtable of the American Library Association. Much of its content is aimed specifically at map and geospatial librarians, but it also has sections devoted to geospatial data and tools.

This is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales from North American Cartographic Information Society. It features tightly integrated vector and raster data of physical and cultural features.

SEDAC is part of the Earth Observing System Data and Information System (EOSDIS) of NASA, and it is hosted by Columbia Univeristy. SEDAC focuses on human interactions in the environment. Its mission is to develop and operate applications that support the integration of socioeconomic and Earth science data and to serve as an "Information Gateway" between the Earth and social sciences.

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. Its online database holds more than 500 different variables, as national, subregional, regional and global statistics or as geospatial data sets.

WorldClim is a set of global climate layers (climate grids) with a spatial resolution of about 1 square kilometer. The data can be used for mapping and spatial modeling in a GIS or with other computer programs.

The "geo" portion of the US government's data.gov initiative. This is a good starting point if you want government geospatial data, and you don't know which agency or department might be the source of such data.

This takes you directly to the National Map's geospatial data and metadata, and bypasses the printable and interactive map pages.

The National Geophysical Data Center maintains this map-based interface portal for Digital Elevation Model (DEM) datasets.

This is the US Department of Agriculture's primary source for data produced by the Natural Resource Conservation Service, the Farm Service Agency, and Rural Development.

The US Geolgoical Survey source for Interactive maps and downloadable data for regional and global geology, geochemistry, geophysics, and mineral resources.

This is an interactive mapping tool and map-based search engine which brings together a range of demographic, environmental, and health data.

The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2011. Users must register to download data, but there is no fee for registration nor any spam.

Geospatial data from the New York state government.

CUGIR provides geospatial data and metadata for New York State, with special emphasis on those natural features relevant to agriculture, ecology, natural resources, and human-environment interactions.