Seed Companies

• DeKalb
• Mycogen
• NK
• Pioneer

Extension/Educational

• American Soybean Association
• SoyGrowers.com
• FFA
• Iowa State University Extension
• National Corn Growers Association
• Purdue University Agronomy Extension
• Small Grains Organization
• University of Illinois - Extension
• UW-Madison Integrated Pest and Crop Management
• University of Wisconsin-Extension: Cooperative Extension Service
• Wisconsin Corn Agronomy
• Wisconsin Soybean and Small Grains
• Wiscosin Farm Bureau
• Wisconsin Soybean Marketing Board

Equipment and Parts

• AgChem
• Agco
• Case Corporation
• DICKEY-john
• Great Plains
• John Deere
• New Holland
• Yetter Farm Equipment

Crop Protection Companies

• AgrEvo
• BASF
• Dow Agrosciences
• DuPont
• Monsanto
• Syngenta (formerly Novartis)
• Valent
• AstraZeneca

Weather

• Freese-Notis Weather.Net
• Intellicast

Marketing

• Chicago Board of Trade

On-Line Information Services

• @griculture Online
• AgriBiz
• DTN AgDayta
• E-Markets
• FarmSource

Federal Agencies

• USDA
• USDA-FSA

Maps

• MapQuest
• MapBlast