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The Roadmap for Accessible Rich Internet Applications (WAI-ARIA Roadmap) addresses the accessibility of dynamic Web content for people with disabilities. The roadmap outlines the technologies to map controls, AJAX live regions, and events to accessibility APIs, including custom controls used for Rich Internet Applications. The roadmap also outlines new navigation techniques to mark common Web structures as menus, primary content, secondary content, banner information and other types of Web structures. These new technologies can be used to improve the accessibility and usability of Web resources by people with disabilities, without extensive modification to existing libraries of Web resources.