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The best Trimble GPS unit ever made. Accuracy 50cm to 10cm. Satellite and Beacon differential correction.

Below are the best GIS sites on the Internet. You can find free GIS data, GIS information sources, and GIS help to increase your GIS knowledge.

AGIS Mall
A great source for learning about ESRI's new ArcGIS and ArcView. Complete listing of extensions. Explains the new ArcGIS concept and compares ArcView 3.x to ArcGIS.

ESRI Data for GIS
Many sources of data for GIS: Free Data, Third Party Data, and ESRI's Data.

Geographic Network
Geographic data and services through cooperating data publishers.

Scripts by ESRI
Ready to use AML, Avenue, SML and AutoLISP scripts. Top 10 downloads new scripts this month.

GIS Portal
Links to Classic GIS Sites, GIS Jobs, GIS Related Sites, Breaking GIS News!, Online GIS and more.

AGI GIS Data Dictionary
Cheers! Visit the University of Edinburgh for GIS definitions. Expect warm beer.

The SeisSoft Company
Coordinate transfers R'US, free software for datums, coordinate systems

Guide to GIS Resources on the Internet
Everything you wanted to know about GIS but were afraid to ask. 

National Spatial Data Clearinghouse
A collection of over 250 government spatial data servers who belong to the Federal Geographic Data Committee.  Click on "web links."

The Kingston Centre for GIS
Kingston in UK has GIS software to download - Versamap 1.5, Geoconverter for the Mac, a GIS course, and great GIS links.

U.S. Geological Survey Products
Great source for ordering USGS topographic maps, mapping library, historical map archives, remote sensing data, downloadable data, geographic names information, and much more