|American Society of Photogrammetry and Remote Sensing|
|Geospatial Information & Technology Association|
|University Consortium for Geographic Information Systems||Urban and Regional Information Systems Association|
|Association of American Geographers|
|The Open Source Geospatial Foundation||Center for Spatially Integrated Social Science|
|HyHy||The Hydrographic Society of America|
U.S. Patent & Trademarks Office (USPTO)
The U.S. Patents from 1790 to the most current submissions are available on the from the USPTO website in full-text.
Google provides a google interface to explore the USPTO patent database.
Offers international coverage, though not comprehensive. Information about 81 national patent offices is available from this site at Global Patent Data Coverage, January 2007.