GIS
ESRI
Canada Centre for Remote Sensing
Fundamentals of Remote Sensing Tutorial
GEOcommunity
Geographic Information Systems FAQ
Geonetcom
GeoTIFF
"Great GIS net sites"
Illustra for Earth Scientists
Java Advanced Imaging API
JShape - WWW Java GIS
MicroImages, Inc
"Advanced software for geospatial data analysis."
Online Resources for Earth Scientists (ORES)
OpenGIS Consortium
Open Source Remote Sensing Effort
USGS GIS page
See Also
Maps
Space