The British Bryological Society - The UK society concerned with the recording, mapping and conservation of British and tropical bryophytes and the producers of The Journal of Bryology. www.rbge.org.uk/bbs
The Finnish Bryological Society - Founded in 1987 to promote bryological research and support the cooperation of the bryologists in Finland. www.fmnh.helsinki.fi/sammalseura/english.html
The International Association of Bryologists - An organization which promotes international cooperation and communication among bryologists. Publishers of the Bryological Times. www.devonian.ualberta.ca/iab/index.html