Amerika
American bonsai society is the pioneering national bonsai organization that promotes knowledge of and interest in bonsai in canada and united states.
http://www.absbonsai.org/
Bonsai Artists UK
Bonsai Artists UK
http://www.bonsaiartists.co.uk/
Bonsai Clubs International
Bonsai Clubs International
http://www.bonsai-bci.com/
Bonsai International
Bonsai International
http://www.bonsai-bci.com/index2.html