Google Earth is an example of a GIS (Geographic Information Systems) application. To be more specific, Google Earth is a GIS viewer. GIS applications use maps to display data based on their location. Google Earth is a free Geographic Information Systems (GIS) program that combines maps and geographic information with satellite and aerial photography. Google Earth software is downloaded to your computer, but requires an internet connection because Google Earth exchanges information with Google’s search services. With the software you can “turn on” searchable layers that display additional information provided by Google. You can also use Google Earth to map your own geographic data.