American Ag Network: http://www.americanagnetwork.com/index.shtm
American Soybean Association: http://www.soygrowers.com/
Certified Crop Adviser (CCA): https://www.certifiedcropadviser.org/
Crop Protection Product Labels and MSDS's: http://www.cdms.net/LabelsMsds/LMDefault.aspx?t=1
Montana State University Extension: http://extn.msu.montana.edu/
National Ag Statistics Service: http://www.nass.usda.gov/
National Corn Growers Association: http://www.ncga.com/
National Drought Monitor: http://drought.unl.edu/dm/
North Central Soybean Research Program: http://www.planthealth.info/
NDAWN (North Dakota Ag Weather Network): http://ndawn.ndsu.nodak.edu/index.html
North Dakota State University Extension-Crops: http://www.ag.ndsu.edu/crops/
Red River Farm Network: http://www.rrfn.com/index.cfm
South Dakota State University Extension: http://sdces.sdstate.edu/
University of Minnesota Extension: http://www.extension.umn.edu/topics.html?topic=4