The following links offer significant data for students and instructors with special needs.

Visually Impaired

http://www.microsoft.com/enable/training/guides.htm

http://www.trace.wisc.edu/docs/quick_sheets/qs6.html

http://www.brailleinstitute.org/

http://www.aph.org/

Learning Impaired

http://www.microsoft.com/enable/training/guides.htm

http://www.ldonline.org/

http://www.ldanatl.org/

Hearing Impaired

http://www.microsoft.com/enable/training/guides.htm