Agricultural Research Service - Joint site for Departments in Land-Grant Universities and the U.S. Department of Agriculture - Agricultural Research Service (USDA-ARS). A general topics site.

Agriom BV - Site developed by Agriom BV, a Dutch ornamental plant breeding company, and describes their services.

Wiley Books - A commercial site developed by John Wiley and Sons and describes their for-sale books on many aspects of Agriculture including floriculture.