Watchfire WebXACT
Bobby is a commercial Windows-based tool to analyze web pages for their accessibility to people with disabilities.

Designing More Usable Web Sites
Techniques for Web Content Accessibility Guidelines 1.0 ... Techniques for User Agent Accessibility Guidelines 1.0 · Checklist of Checkpoints for User Agent ...

Section 508: Section 508 Standards
... of the Web Content Accessibility Guidelines 1.0 (WCAG 1.0) (May 5, 1999) published by the Web Accessibility Initiative of the World Wide Web Consortium: ...

Web Accessibility Initiative (WAI) - home page
Web Content Accessibility Guidelines 2.0 (WCAG 2.0) Working Draft documents ... Many people know about WAI's Web Content Accessibility Guidelines (WCAG) and ...