STATE & LOCAL Providence Plan data and mapper Rhode Island GIS data includes datalayers, online orthoimagery (aerial photography), digital atlas, and other maps; maintained at U.R.I. RI Digital Atlas RI data on watersheds, communities and various topics State agency GIS sites GIS data for all 50 states; compiled at U.Va. State and local aggregations compiled at U.Ark. State data repositories compiled at Connecticut College MassGIS MA state depository for spatial data Connecticut Map & Geographic Info Center CT state depository for spatial data

UNITED STATES   Census.gov data for people, households, business and industry; see 'Geography' Census 2009 TIGER/Line Data shapefiles of Census data Census 2000 TIGER/Line Data shapefiles of Census data Geodata.gov intergovernmental geospatial one-stop portal  Geospatial Data Gateway natural resources data compiled by USDA National Atlas of the United States interactive access to a wide variety of data National Map Seamless Server allows convenient area delineation and downloading of USGS data ReferenceUSA Directory info on U.S. businesses, via Brown subscription U.S. national aggregations compiled at U.Ark.

INTERNATIONAL & DOMESTIC   ADMINISTRATIVE BOUNDARIES Country Data variety of data by country, compiled at U.C. Berkeley   COUNTRY DATA Continent Aggregations African, Australian and European data from MIT GIS Laboratory GeoGratis Canadian geospatial data portal GIS Data Depot offers data at local, state, and country scales IGAC geographic materials for Colombia   GEOCODING & POSTAL CODES Google Earth save data from desktop program to KML files; rich source for international addresses and geocoding Postal Codes (international)   HISTORICAL Historical U.S. Census data 1790-1960, by state and county (tabular data) Historical U.S. Census microdata IPUMS; samples from 15 censuses National Historical GIS aggregate census data and GIS-compatible boundary files, 1790 - 2000

  DATA REPOSITORY

	Geography Network offers data at local, state and country scales
	GIST varied data with humanitarian emergency response focus
	Global Change Master Directory data and services
	Global Rural-Urban Mapping Project (GRUMP) Alpha Development Data Alpha Development Data -- Africa and Asia Urban Masks
	Harvard Geospatial Library MA, federal and international data, searchable by keyword
	Map Library Administrative boundaries of developing countries
	National Geospatial Data Clearinghouse >250 spatial data servers, now with International data
	U.S. federal agency GIS sites compiled at U.Va.

Online Maps