The American Epilepsy Society
http://www.aesnet.org
This website has information about the different kinds of treatment,
preventions and cures for epilepsy.
The Epilepsy Foundation
http://www.efa.org/aboutus/index.cfm
This website has general information about epilepsy. It also includes medical, social, and life aspects about epilepsy.
The International League Against Epilepsy (ILAE)
http://www.ilae-epilepsy.org/
This website has a wealth of information about epilepsy.