W3C and W3Schools
The World Wide Web Consortium (W3C) has resources and tutorials to help you make your website accessible. Read the W3C accessibility standards. Want to learn even more? W3schools.com offers free tutorials in many common web languages and techniques.
Consequences for inaccessible environments and content
Over the past few years, several universities have been accused of discrimination, because
many of their information technology applications could not accommodate people with disabilities. The University of Washington offers a review of some of those cases.
Web accessibility basics
Content accessibility basics