- Certified Alfalfa Seed Council
- Crop Statistics
- Field Crop Diseases (including mycotoxins)
- Illustrated Encyclopedia of Forage Crop Diseases
- Ohio Crop Enterprise Budgets
- Ohio Forage Team
- Oregon State Forage Information Center
- Purdue University Forage Information
- US Dairy Forage Research Center
- University of Wisconsin: Forage Research and Extension
- West Virginia University Forage-Livestock Systems