A2B
   Location based search engine finds websites by their proximity to a given location. It accepts GeoURL ICBMs and geotags for adding sites, and has an open API for developers.
   http://www.a2b.cc

Geographic Search
   Dan Egnor's winning Google Programming Contest submission. Includes a address-to-global coordinate geographic encoder, a document keyword indexer, and a radial search function.
   http://8ball.ofb.net/~egnor/google.html

Geourl ICBM Address Server
   GeoURL is a location-to-URL reverse directory. This will allow you to find URLs by their proximity to a given location. Find your neighbor's blog, perhaps, or the web page of the restaurants near you.
   http://www.geourl.org/

Golf Mapping
   GPS service is an efficient method of gathering a complete data set of a golf course. The data set provides all the information that is critically important to a course's successful development and management.
   http://www.golfmapping.com

How to Make a Straight Line Square
   Network analysis in raster GIS with time-dependent cost variables. Masters thesis by Jan Husdal.
   http://husdal.com/mscgis/thesis/

Inforain: GIS Mapping for the Rain Forest Coast
   Watershed, estuary and forest information for the North American coastal temperate rain forest bioregion.
   http://www.inforain.org/

Marinamap.com
   Find marinas by mouseclick on the marinamap sea chart.
   http://www.marinamap.com/

Montgomery County GIS Department
   GIS analysis projects relevant to Montgomery County, Maryland.
   http://www.mc-mncppc.org/gis/index.shtm

Nature Conservancy
   Provides staff and partners with GIS knowledge, systems, data, maps, and community resources. Some sections are limited to Conservancy and Natural Heritage/CDC staff.
   http://gis.tnc.org/

Sportsmapping.com
   Mapping and GIS source for golf courses and communities.
   http://www.sportsmapping.com/