Cycadopsida

Cycad Identification
Features a key distinguishing families and genera, and each family and genus has its separate home page. Each genus page has links for all accepted species in that genus and keys to identify them.
http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/ident.html

Cycad Societies
Lists Cycad societies around the world.
http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/cycadsoc.html

Cycadophytes
Introduction to the cycads.
http://www.geocities.com/Heartland/Plains/6761/ecycads.htm

Gardening with Cycads
Article on the use of cycads in the landscape.
http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/cycsour.html

Plant Diversity: The Cycads
Information and photographs of several cycads that grow in the wet tropics of Australia.
http://www.wettropics.gov.au/pa/pa_cycads.html

Where to See Cycads
Lists places in the wild and in cultivation where Cycads may be seen.
http://plantnet.rbgsyd.nsw.gov.au/PlantNet/cycad/seecycad.html