GPS:
Global Positioning System Overview from the U. of Texas, Austin
GPS frequently asked questions
California GIS:
California Geographic Information Association (CGIA)
National Center for Geographic Information and Analysis (NCGIA) at UCSB
Guide to GIS Resources on the Internet - Berkeley
Research Program in Environmental Planning and Geographic Information Systems (REGIS)
GIS at Branner Earth Sciences Library - Stanford
GIS data for northern California
GIS Resources:
GIS WWW Resources
from the University of Edinburgh
GIS Ftp Server Resource
List
Gateway to GIS Resources - U.S. Census Bureau
USGS Information on GIS
The GIS Portal - GIS WWW Resources
Environmental Systems Research Institute Inc. (ESRI)
The Society for Conservation GIS
MAP MAKER - Demystifying GIS - Map Processing for Windows
GIS core curriculum for Technical Programs:
GIS Links From About.com:
GIS Resources for United States of America
GIS - Geographic Information Systems
GIS / Mapping - CAD - Net Links