BCA - Association of Visually Handicapped Chess - http://www.braillechess.org.uk/ Brings blind and partially sighted chess players together to compete in tournaments. Events, gazette, downloads of games and help with software.
International Committee of Silent Chess - http://web.tiscali.it/icsc_w/index.htm Organizes World Championships, the European (Continental) Clubs Chess Championships and friendly international tournaments. Background information, member countries and calendar.
Selfhelp Chess: International - http://www.selfhelp-chess-international.org Non-commercial chess initiative for players in selfhelp-groups, the disabled, elders, schools, and leisure-players that helps to establish chess groups around the world for teamwork and network.
Braille Chess Association of Ireland - http://ireland.iol.ie/~jghurley/ibca.htm History, news, articles, game samples and relevant rules are presented by this association for blind and partially sighted players.