American Bonsai Society - www.absbonsai.org

Bonsai Clubs International - www.bonsai-bci.com

MidAtlantic Bonsai Societies - www.midatlanticbonsai.freeservers.com

Knowledge of Bonsai - www.knowledgeofbonsai.org

National Bonsai Federation - www.bonsai-nbf.org