Web Accessibility Initiative: helping people with deficiencies use WWW
The usage of a PC for a man with disabilities is a very hard thing to do. But it is even harder to use the Web, as people with disabilities sometimes require non-standard devices or browsers, that ease the access to the web-sites from PCs and mobile devices as well.
The Web Accessibility Initiative are a group created by the World Wide Web Consortium in order to create recommendations, that include strategies, guidelines and resources, in order to ease the use of the Web accessible for everyone, especially for the people with disabilities.

