Texas Gulf Coast Fern Society
Introduction, events, and links to other societies and sites of pteridological interest.

American Fern Society
Information on the biology and cultivation of ferns; activities of the society including a spore exchange and publication of Fiddlehead Forum, American Fern Journal, and Pteridologia.

Cold-hardy Tree Ferns
Well illustrated site that describes cold-hardy tree ferns and their cultivation in cool climates.

Nederlandse Varenvereniging
The Dutch Fern Society offers basic information about ferns in general and several galleries of fern pictures and drawings. Site available in English and Dutch.