No - Till.com
Serves as a switchboard to web pages containing information about no-till farming, with an orientation toward Minnesota and the Dakotas.
http://www.no–till.com

South Dakota No -Till Association
The Purpose is to promote, advance and improve agriculture through the utilization of no-till farming methods.
http://www.sdnotill.com

Manitoba - North Dakota Zero Tillage Farmers Association
Facilitate the exchange of ideas, to encourage zero tillage research, and to disseminate zero tillage information.
http://www.mandakzerotill.org

European Conservation Tillage
Presents an overview of conservation tillage along with related information on techniques and people.
http://www.ecotill.com

Conservation Technology Information Center 
(CTIC) is a nonprofit, information and data transfer center which promotes environmentally and economically beneficial natural resource systems.
http://www.ctic.purdue.edu

Selected Extension Publications on the Web
Missouri No-Till Planting Systems
http://muextension.missouri.edu/xplor/manuals/m00164.htm

Conservation Tillage and Planting Systems (Nebraska)
http://www.ianr.unl.edu/pubs/fieldcrops/g1046.htm

Conservation Farming in New Mexico
http://www.cahe.nmsu.edu/pubs/_circulars/circ555.html

Value of Crop Rotation Under Various Tillage Systems (Indiana)
http://www.agcom.purdue.edu/AgCom/Pubs/AY/AY-230.html

Weeds and Conservation Tillage (Colorado)
http://www.colostate.edu/Depts/CoopExt/PUBS/CROPS/03113.html

No-Tillage and Ridge Planting (Ohio Agronomy Guide)
http://www.ag.ohio-state.edu/~ohioline/b472/notill.html

Effects of Reduced Tillage on Wheat Diseases (Kansas)
http://www.ksu.edu/plantpath/extension/facts/wheat15.html

Conservation Tillage (for vegetables – Virginia)
http://www.ext.vt.edu/departments/commhort/commhort-5.html

Tillage and Rotation (Ontario, Canada)
http://www.gov.on.ca/OMAFRA/english/crops/facts/corntill.htm

Economic Comparison of Incremental Changes in Till Systems in the Minnesota River Basin
http://www.mes.umn.edu/Documents/D/D/DD6675.html

Soybeans: No-Till And Minimum Till Guidelines (Mississippi)
http://ext.msstate.edu/pubs/is1129.htm

Roger Brook
These links are provided for informational purposes only.
Neither I nor Michigan State University endorse these sites, or their information content.