Web Content Accessibility Guidelines
The WCAG explain how to make Web content accessible to people with disabilities. The guidelines are intended for all Web content developers (page authors and site designers) and for developers of authoring tools. The primary goal of these guidelines is to promote accessibility.
However, following them will also make Web content more available to all users, whatever user agent they are using (such as desktop browser, voice browser, mobile phone, and automobile-based personal computer) or constraints they may be operating under (such as noisy surroundings, under- or over-illuminated rooms, or in a hands-free environment).
Following these guidelines will also help people find information on the Web more quickly. These guidelines do not discourage content developers from using images, video, etc., but rather explain how to make multimedia content more accessible to a wide audience.
