LINKS
GIS
Software

ESRI - A Leader in GIS

 

One of the premier companies in GIS software.  Keen on educating people in general regarding geography, the world they live in, and GIS.

 

 

ArcExplorer (Free Viewer)

 

 

Quantum GIS (Open Source, Fully Functional)

 

Completely Free and Open Source GIS.  Check out the GRASS image processing software as well under Other Links - Remote Sensing.  GRASS is also open source and free.

 

MapInfo

 

A leading GIS software provider.  I used this way back when I was a research intern for M&M Mars Candy Co.  Cheaper than ESRI.