Providers of Accessible Books in the United States of America
The Library of Congress National Library Service for the Blind and Physically Handicapped, also known as NLS, is a government-run library service for people who cannot read standard print books and magazines because of visual or physical impairment. Materials are sent through the mail postage-free, but internet book and magazine download services have been added in the past decade. NLS provides books and magazines in audio and braille formats.
http://loc.gov/nls
Recording for the Blind and Dyslexic is a nonprofit organization that provides audio recordings of textbooks and other educational materials to people who are blind, physically disabled, or dyslexic.
http://rfbd.org
unique visitors as of July 18, 2010