GIS –looking at geographically
attributed data
MapServer – public domain version of ArcInfo
GMT – text files as a GIS at some level
UIRSA – public domain
MapInfo – low end
Strategic GIS
ArcInfo/ArcGIS – ESRI
EASy – “no analysis tools, just serving data”
Delorme (ME); GeoZUI3D (UNH); JGOFS (!)
Learning curve: lots of options, capabilities