Geographic Information Systems (GIS)
A geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present spatial or geographic data. Below are a few of today's most used GIS programs.
google mapping tools
Google has developed a variety of mapping tools that will allow you to create new knowledge, raise awareness, or enable people to take action to change the world.
QGIS is a free and open-source cross-platform desktop geographic information system application that supports viewing, editing, and analysis of geospatial data.
esri - arcgis
ArcGIS is used for creating and using maps, compiling geographic data, analyzing mapped information, sharing and discovering geographic information, and managing geographic information in a database.
OSM is a collaborative project to create a free editable map of the world. It is considered a prominent example of volunteered geographic information