Some excellent recent resources on web accessibility:
- Social networks and accessibility: A not so sad picture – revised article by @MarcoInEnglish
- The Unbearable Inaccessibility of Slideshows – AKA carousels; by Gian Wild of @accessibilityOz
- Accessibility Hackathons – list and info by @AccessibleJoe
- Accessibility Originates With UX: A BBC iPlayer Case Study – by @iheni
- WordPress & Accessibility: Just where is the problem? – by @JoeDolson
- Aural UI of the Elements of HTML (W3C) [what screen readers do with HTML5 semantics] by @SteveFaulkner and @LeonieWatson
- Practical tips for Web and mobile usability tests – by @jerrycao_uxpin