The European Scientific Cooperative On Phytotherapy E/S/C/O/P - An umbrella organisation representing national herbal medicine or phytotherapy associations across Europe, especially in their discussions with European medicines regulators.
American Botanical Council - Herbal Library offering a range of educational materials, some of the information is available free to the general public.
Herb Research Foundation - A science-based information website showing the health benefits and safety of medicinal plants.
Phytotherapies.org - A resource for herbal practitioners, it includes editorial content, articles and an extensive searchable and hyperlinked herbal database on current herbal therapeutics.
Medicines and Healthcare products Regulatory Agency (MHRA)
Dr. Duke's Phytochemical and Ethnobotanical Databases
North American Institute Of Medical Herbalism - Provide links to medical information and to resources relevant to medicinal herbs or herbalism practiced in a clinical setting, regardless of the medical tradition or system.