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Geospatial data -- Computer network resources

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View Resource GeoGratis

While there may in fact be no such thing as a free lunch, there is in fact such a thing as free geospatial data, and such nuggets of information can be found right on this site. Created by the Earth Sciences Sector of Natural Resources Canada, this portal provides a wide range of geospatial data for everyone from the casual novice to the seasoned GIS expert. New visitors should start by clicking...

http://geogratis.gc.ca/geogratis/search?lang=en
View Resource Army Geospatial Center

Based in Virginia, the primary mission of the Army Geospatial Center (AGC) is "to coordinate, integrate, and synchronize geospatial information requirements and standards across the Army." On the home page, visitors can learn about the AGC's ongoing initiatives via the How Can We Help You area. Here visitors can learn about different thematic projects dealing with civil works, terrain, imagery,...

http://www.agc.army.mil/
View Resource MetroBoston DataCommon Screenshot

Data visualization has grown by leaps and bounds over the past few years, and the MetroBoston Data Common is a fantastic initiative in this area. The DataCommon is "an interactive data portal and online mapping tool that provides a wealth of information about the region's people, communities and neighborhoods through a wide variety of topics." New visitors may wish to start by looking over the...

http://metroboston.datacommon.org/