Links

The following are my collection of bookmarks that may be of assistance on evaluating agricultural vehicle guidance technology.

Farming Practices

Guidance can be an effective enabler of new farming practices:
Controlled Traffic Farming
Vertical Tillage
Gary Jones' Blog

Testing

The following links may assist with the evaluation of guidance technologies:
Selecting and comparing guidance systems - Randy Taylor
GPS accuracy by Tim Stombaugh
GPS simplified by Tim Stombaugh, Scott Shearer & John Fulton
Choosing the right lightbar by Tim Stombauch
Lightbar guidance aids by Tim Stombauch
Low cost gps recieve comparison - University of Kentucky
Light bar navigation by Robert Grisso and Mark Alley
GPS - Rrobert Grisso, et al.
Dynamic testing of GPS receivers - Randal Taylor and Mark Schrock
David Wilson's GPS Accuracy

Trends

The following links discuss how guidance technology might develop:
The road ahead as viewed from Des Moines
Robotic tractors: close to reality
This tractor drives itself

Specialist Guidance Dealers

The following links are to dealers specialising in agricultural cropping technology:
Precision Profits (Fairview, KS)
Martens Farms (Inman, KS)
RLH Technologies (Effingham, IL)
Rust Sales (Harwood, ND)
Nielsen Communications (Inman, NE)
GPS-Ag (Bendigo, VIC, Australia)
Ramboc (MB, Canada)
Patinc (MB, Canada)

Discussions

The following discussion groups include discussions on agricultural guidance technology: AgForum.info
Precision Agriculture Talk @griculture Online
Precision Talk at New Agtalk

Organisations

These links are to organisations focused on assessing and developing guidance and precision agricultural technologies:
Australian Centre for Precision Agriculture
Center for Spatial Technologies and Remote Sensing
FarmResearch.com (great conferences)
K-State Precision Agriculture
Nespal (great info)
Openag Geospatial (educational)
PrecisionAg.org
Purdue Site-Specific Management Center (excellent)
SDSU Precision Ag
Southern Precision Agriculture Association (Australian Precision Agriculture)
Texas Precision Ag
University of Minnesota Precision Agriculture Center
Auburn University GPS Vehicle Dynamics Laboratory

Searching

If you are searching, here are some links that may help:
AgView.com
PrairieLinks Agriculture Directory and Tractor Search
Farmers' Guide to the Internet (Canadian Focus)
Precision Farming Links (UK Focus)
AgEze (Great Agribusiness Portal)
frostproof.com (Agricultural Supply)
AgriSurf (not updated recently)
AgriScape (wide range of ag links)
Extensive farming links (UK Focus)
Prairie Truck and Tractor.com - Ag links
Useful UK links
Bill Pearson's useful agricultural sites (UK focus)
Tractor links
Ag-central.com (ag machinery focus)
Agnet (australian links)
Canadaseek (Canadian search & links)
Farmnet (good Australian links)
farms.com (Machinery links are old)
Tumpline Stackyard
Behm Design agriculture links (long regularly updated list)
Farm Show (great up to date links)
North Dakota Ag links (great ND producer maintained list)
Cyber Space Farm
Search engine submission & optimization
Search sight (a refreshing way to search)
Webshed.com (diverse farming links)
Grisby Ag Services

For some interesting results try Google site flavored search: