Genus List - Includes synonyms, Royal Botanic Gardens, Kew. - http://www.rbgkew.org.uk/cgi-bin/web.dbs/genlist.pl?LYCOPODIACEAE
Lycopodiaceae Images - The Vascular Plant Image Gallery at Texas A&M University. - http://www.csdl.tamu.edu/FLORA/imaxxlyc.htm
Botanical Dermatology Database - Lycopodiaceae - Family page from this database on allergies and other negative responses to plants. - http://bodd.cf.ac.uk/BotDermFolder/BotDermL/LYCO.html
Lycopodiaceae - Brief description of this family of terrestrial or epiphytic homosporous, protostelic vascular plants comprising about half a dozen genera and 300 species with images of three species. - http://www.botany.hawaii.edu/faculty/carr/lycopodi.htm