The Web Accessibility Initiative develops accessibility standards for the web and support materials to help organizations make their websites and digital resources more accessible to people with disabilities.
WAI also hosts a number of videos that demonstrate how people with disabilities use the web.
The WCAG 3.0 Draft of Functional Needs divides the world of accessibility requirements into users’ needs rather than based on specific disabilities.
The Daisy Consortium is is an international non-profit membership organization that works with 150+ partners around the world to improve access to reading for people with print disabilities.
Inclusive Publishing is a DAISY Consortium initiative that collects resources, information, and news on the best approaches to producing, delivering, and reading accessible content - particularly for EPUB books.
The section on Accessibility offers general guidance on accessibility considerations for text, images and charts, tables, and audio and video content, as well as a list of useful references.