Useful GIS and Geostatistics Links

	University of Arizona GIS User Group
	USGS Site for GIS    Data Integration Figure from USGS
	The Arizona Land Resource Information System (ALRIS)
	GIS Resources (Edinburgh)

Other resources

• "G.R.A.S.S."
  (Open GIS)
• FAQ page from U.S. Census Bureau
• Read the GIS newsgroup

Global Positioning (Texas): 

• System Overview
• Picture of GPS satellite
• Drawing of GPS satellite orbits
• Drawing of Differential GPS setup

AI Geostatistics: Excellent site for basic information on geostatistics 

GPS units from Garmin 

Precision Farming Links 

• John Deere Precision Farming 

• Case IH Advanced Farming Systems 
• Site-Specific Technology (SST) Development Group, Inc. 
• Links from the University of Georgia 
• @gInnovator