Some links for IT support for the Disabled are:
http://www.abilitynet.org.uk/content/home.htm
http://in.dir.yahoo.com/Society_and_Culture/Disabilities/Assistive_Technology/
http://directory.google.com/Top/Society/Disabled/Assistive_Technology/
http://www.access-board.gov/links/communication.htm
http://www.icdri.org/
http://www.c-cad.org/
http://www.icdi.wvu.edu/Others.htm
http://www.washington.edu/doit/Brochures/Technology/wtcomp.html
http://www.wvddc.org/adult_resources.html