geographic information system
spatial data information systems
Participatory GIS
approach to spacial planning, information, and communications management
GRASS GIS
free, open source geographical information system
SAGA GIS
map software
GIS Day
annual geographic information systems public outreach day
GSI Maps
GIS provided by GSI
geo-application
geographical application
linear referencing
method of spatial referencing
geographical database
database of geographic data
land information system
land mapping and cadastre GIS used by local governments
historical geographic information system
GIS tracking temporal changes
Web GIS
technologies employing the World Wide Web to manage geospatial data
Google Earth
virtual map program developed by Google
Potlatch
editor for OpenStreetMap data
Ocean Biodiversity Information System (OBIS)
online marine biology database