CropKing.com - Links off CropKing.com
- MountainFreshFarms.com (a CropKing Customer)
- "Hydroponics" by Dr. Merle Jensen, University of Arizona
- USDA Terminal Market Vegetable Report
- Tomato Plant Problems FAQ by Kay Klier
- OSU Decision Support for Growing Hydroponic Tomatoes
Magazines, Books & Authors Online
- Growing Edge Magazine
- Practical Hydroponics & Greenhouses magazine
- Howard Resh is a popular hydroponics writer
Organizations
Biological Control Sites
