Want to know if your website is accessible? Check out these checklists and validators to see how you can make you site more accessible to all users!
There are number of organizations that provide more comprehensive guidance for how to make websites accessible. A web
accessibility company called WebAIM provides a checklist for 508 compliance that many find to be very useful:
http://webaim.org/standards/508/checklist
There are also the Web Content Accessibility Guidelines (WCAG 2.0) created by W3C, which many used in addition to, or instead of, Section 508 guidelines. WCAG 2.0 offers guidelines for achieving different levels of accessibility — your website can be at Level A (most basic accessibility), Level AA, or Level AAA (highest level of accessibility).
Web Content Accessibility Guidelines 2.0 from W3C – http://www.w3.org/TR/WCAG20/
WebAIM also provides a checklist for compliance with WCAG 2.0 standards as well: http://webaim.org/standards/wcag/checklist
If you are interested in the comparison between Section 508 and WCAG 2.0, they are compared here:
Mapping Section 508 on WCAG 2.0 Level A: http://www.csulb.edu/~wed/public/EqEffAcc/