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American Mushroom Institute
Information on cultivation, regulations, statistics, seminars and conferences, suppliers and consultation services.
http://www.americanmushroom.org
Mushroom Information Center - Mushworld
Resource for information pertaining to all aspects of the mushroom community including cultivation, pest and disease, medicinal mushrooms,seminars and conferences, and consultation.
http://www.mushworld.com
Myco Labs
Researches the edible and other useful products to be made from fungi.
http://myco-labs.com
Sylvan Inc.
Produces and distributes mushroom spawn and fresh mushrooms.
http://www.sylvaninc.com/