Acessibility.com
Proposes consulting services on web accessibility and section 508 compliance.
Adaptations
Offers consulting services for professionals and consumers seeking information about accessible environments for the aging population and people with disabilities.
Criterion 508
Specializes in Section 508, web accessibility, legal consulting, accessibility testing, and web site redesign.
National Center for Accessible Media
Research and development facility that works to make media accessible to disabled persons, minority-language users, and people with low literacy skills.
Section508.com
Offers section 508 compliance testing to companies via sponsorship programs.
Usability.gov
Links to Section 508 federal requirements, accessibility guidelines, tools, articles, and software.
W3C - References on Web Accessibility
WAI resources, projects and research, papers and articles on Web accessibility.
Web Accessibility Initiative (WAI)
The Web Accessibility Initiative (WAI) of the World Wide Web Consortium (W3C). Vast quantities of information and resources for making the Web accessible to all.