WebAIM

WebAIM (Web Accessibility in Mind) is a non-profit organization based at Utah State University in Logan, Utah. WebAIM has provided web accessibility solutions since 1999. WebAIM's mission is to expand the potential of the web for people with disabilities by providing the knowledge, technical skills, tools, organizational leadership strategies, and vision that empower organizations to make their own content accessible to people with disabilities.
Products and services.
WebAIM provides a number of web accessibility products and services. The WAVE accessibility evaluation tool is administered by WebAIM. This free, online tool provides visual feedback of a page's accessibility. The WAVE Toolbar is also available as an extension for both Firefox & Chrome browsers. 
WebAIM web accessibility services include accessibility training, web site monitoring & reporting, certification, consulting, accessible site design, and accessibility repairs.
Community.
WebAIM administers an online community that focuses on web accessibility. Community resources include a newsletter, blog, email discussion list, an onsite 2-day training, and RSS feeds.
Resources.
The WebAIM web site provides extensive information for web developers, webmasters, and others interested in accessibility of web content for the following disabilities:
See also.
WebAIM Articles address a range of web accessibility topics, including: