Tools for Accessibility

Please find the below list of tools which helps to evaluate the site compliance percentage for Web Accessibility

Name URL's for Accessibility Tools Comments
WDG HTML Validator http://www.htmlhelp.com/tools/validator/ Hightly Recommended
Functional Accessibility Evaluator 1.0 http://fae.cita.uiuc.edu/ Hightly Recommended
Truwex http://www.erigami.com/truwex/ Hightly Recommended
Accessibility evolution tool list http://www.w3.org/WAI/ER/tools/complete.html Some of the tools may outdated or can support WCAG 2.0
Web Content Accessibility Guidelines . 2.0 http://www.w3.org/TR/WCAG20/  
Web Accessibility Toolbar http://www.visionaustralia.org.au/info.aspx?page=1569 The Web Accessibility Toolbar has been developed to aid manual examination of web pages for a variety of aspects of accessibility.
Section 508 Standards http://www.section508.gov/index.cfm?FuseAction=Content&ID=12  
Web Accessibility Testing http://jimthatcher.com/testing4.htm  
Web Site Accessibility Tools http://websitetips.com/accessibility/tools/ Free Online or Downloadable Accessibility Tools
Accessibility Tool http://www.htmlvalidator.com/ This Tool is Highly recommended by WebsiteTips.com
Jaws http://www.freedomscientific.com/products/fs/jaws-product-page.asp It is Commercial Screen Reading Software. And according to WebAim survey results 74% users using it.
Window-Eyes http://www.gwmicro.com/Window-Eyes/ It is Commercial Screen Reading Software. And according to WebAim survey results 23% users using it.
Web AIM http://www.webaim.org/projects/screenreadersurvey/ Survey of Preferences of Screen Readers Users
Web AIM http://www.webaim.org/ Very Useful Site for Web Accessibility.
Wikipedia Comparison of screen readers http://en.wikipedia.org/wiki/List_of_screen_readers Comparison of screen readers
Using JAWS to Evaluate Web Accessibility http://webaim.org/articles/jaws/ This article is designed to help users who are new to JAWS learn the basic controls for testing web content, and to serve as a reference for the occasional JAWS user.
Using Worldspace to Evaluate Web Accessibility http://worldspace.deque.com/wsservice/eval/
checkCompliance.jsp
Very Useful Site for Web Accessibility.
Sort Site http://www.powermapper.com/products/sortsite/ Very useful site for WCAG 2.0