American Mushroom Institute - national trade association for the mushroom industry.

International Society for Mushroom Science - a non-political and non-profit-making organization supporting the furtherance of mushroom cultivation.

Mushroom Council - provides info about mushroom types, recipes, and handling to distributors of mushrooms and the general public.

The Mushroom Growers' Information Site

The Mushroom Growers' Newsletter - industry news and analysis, marketing ideas, new technology and lots of help for growers of specialty, gourmet and medicinal mushrooms.

Mycological Society of America

North American Mycological Association