A murb'ed feed, posted about 5 years ago filed in aria, accessibility & website.

A good resource to getting started with ARIA on Mozilla Developers Network:

Accessible Rich Internet Applications (ARIA) is a set of attributes that define ways to make Web content and Web applications (especially those developed with Ajax, JavaScript and more recent web technologies like Bootstrap) more accessible to people with disabilities. For example, ARIA enables accessible navigation landmarks, JavaScript widgets, form hints and error messages, live content updates, and more.

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