Those who use geospatial information in their work or research, such as geographers, land use planners, or geologists, may find the Big Ten Academic Alliance Geoportal helpful. This project aims to make geospatial resources more discoverable and accessible to scholars. The Geoportal aggregates publicly-available geospatial resources, which are curated by librarians and specialists at twelve...

The National Oceanic and Atmospheric Administration (NOAA) has created this site to help educators find data resources that range from classroom ready, student-friendly interfaces to raw real-time and historical data. The resources here are grouped into several topic areas, including Classroom Ready, Oceans & Freshwater, Climate, and Visualization. This last area is definitely worth a look as it...

Google Wants You To Complete its U.S. Map http://www.wired.com/epicenter/2011/04/google-maps-us-edit/ Now Users Can Help Edit Google Maps http://blogs.wsj.com/digits/2011/04/19/now-users-can-help-edit-google-maps/ Google Map Maker http://www.google.com/mapmaker Railroad Maps Collection http://memory.loc.gov/ammem/gmdhtml/rrhtml/rrhome.html David Rumsey Historical Map...