DIR - TAC S201.12 State Web Sites
Information Resources and Information Technology Guidelines for Web sites, standards, rules,

UNIFORM FEDERAL ACCESSIBILITY STANDARDS
The original ANSI A117.1, adopted in 1961, formed the technical basis for the first accessibility standards adopted by the federal government and most state ...

ADA Standards for Accessible Design
The ADA Standards for Accessible Design apply to new construction and alterations covered by the Americans with Disabilities Act (ADA).

AJAX and Accessibility - Standards-schmandards
Standards schmandards - articles and tutorials on web standards such as xhtml, css, xml and accessibility.