Organizations
Albuquerque Bonsai Club (ABC) http://abqbonsaiclub.com/
American Bonsai Society http://www.absbonsai.org/
Bonsai Clubs International http://www.bonsai-bci.com/
US National Bonsai and Penjing Museum http://www.usna.usda.gov/
Golden State Bonsai Federation (GSBF) http://www.gsbf-bonsai.org/
National Bonsai Foundation http://www.bonsai-nbf.org/
Discussion Groups
Internet Bonsai Club http://ibonsaiclub.forumotion.com/
Art of Bonsai Project http://www.artofbonsai.org/
Bonsai Magazines
Bonsai Focus (English edition) http://bonsaifocus.com/
International Bonsai http://www.internationalbonsai.com/
Bonsai Nurseries
Dallas Bonsai Garden (Al wire, tools) http://www.dallasbonsai.com/
Adams Bonsai (Cu wire) http://www.adamsbonsai.com/
Deer Meadow Bonsai (Cu wire, plants)http://www.jimgremel.com/bonsaihomepage.html
Bonsai Northwest (Seattle) (plants, pots) http://www.bonsainw.com/
Articles
http://www.evergreengardenworks.com/
http://www.top13.net/suiseki-artists-turn-so-far-unnoticed-stones-into-magnificent-art/