Key places for Resources on Web accessibility

• W3C: WCAG Tutorials: Common Accessibility patterns
• W3C: Education and Outreach homepage of resources
• W3C: A guide to understanding and implementing Web Content Accessibility Guidelines 2.0
• W3C: Using ARIA (tips and tricks - latest draft)
• WAI-ARIA 1.2 Full specification
• 18 WAI-ARIA attributes that every web developer should know

Accessible component libraries and examples

• W3C: WAI-ARIA Authoring Practices, widget library with code samples (Current draft)
• Component library (Deque)
• Inclusive Design - Heydon Pickering

Accessibility Checking Plugins for browsers (Free)

• Accessibility Insights (uses axe core)
• Axe - Web Accessibility Testing
• HTML CodeSniffer Bookmarklet (Uses PA11Y)
• Lighthouse Google Dev tools (uses axe core)
• Siteimprove Accessibility Checker
• Tenon Check
• WAVE Evaluation Tool
• IBM Dynamic Assessment Tool
• W3C: Big list of automated evaluation tools

Integration of api’s into authoring environments

• Axe core
• PA11Y
• Axe for.NET

Blogs

• WebAIM, Articles & Resources
• The Paciello Group - Web Resources
• Accessibility Best Practices (Level Access)
• WebAxe blog and podcast on web accessibility
• CanAdapt Blog
• Adrian Roselli Blog

Additional information for non-text content

• NBA Tape Recording Manual, National Library Service for the Blind & Physically Handicapped, Library of Congress, Washington, DC. Excerpts from the 3^rd edition available online.

Access to time-based and synchronized media

• Captioning Key – Guidelines and Preferred Techniques
• uiAccess list of Transcription Services.
• W3C - Synchronized Multimedia Integration Language (SMIL 3.0)
• WebAIM - Captions, Transcripts, and Audio Descriptions
• WebAIM - Real-time Captioning
• CBC Captioning Guidelines
• Joe Clark - Standard techniques in audio description
• National Institute on Deafness and Other Communication Disorders (NIDCD) - American Sign Language
• University of Hamburg - Techniques for filming sign language interpreters
• Action on Hearing Loss (formal Royal National Institute for Deaf People - RNID) - Communication Factsheets

Adaptable, Distinguishable and Understandable Content

• WebAIM - Semantic Structure
• Accessibility and Usability at Penn State - Heading Tags
• Vischeck software for colorblind vision simulation and Daltonize software for correcting images for colorblind viewers
• Microsoft, Can color-blind users see your site?:
• Webexhibits - Causes and Incidence of Colorblindness
• M. Okabe, K. Ito. Color Universal Design (CUD) – How to make figures and presentations that are friendly to Colorblind people
• The Paciello Group - Colour Contrast Analyser
• Colour Contrast Analyser Firefox Extension
• Colors on the Web, Color Contrast Analyser
• Snook - Colour Contrast Check
• MSFW - Color Contrast Ratio Calculator
• C. Lilley - Atypical Color Response
• W3C - Cascading Style Sheets (CSS 2.2):
• CookieCrook - Accessible CSS
• 6 Surprising Bad Practices that hurt Dyslexic users:
• Davis Dyslexia Association International - About Dyslexia
• R. Weakley - Ideal line length for content
• JuicyStudios - Developing sites for users with Cognitive disabilities and learning difficulties
• P.M. Jones - Line Length, Volume and Density
• The National Archives, Office for Disability Issues - A guide to accessible publishing

Avoiding Seizures

• Cambridge Research Systems - The Harding FPA suite to test Flashing and Spatial Patterns in Broadcast Video
• University of Maryland - PEAT Photosensitive Epilepsy Analysis Tool
• Epilepsy Action - Advice and information
• Epilepsy Foundation - Photosensitivity and Seizures

Navigable Web

• Writing better web page titles
• J. Nielsen - Using the Title Attribute to help users predict where they are going
• WebAIM - Links and Hypertext
• J. Nielsen - How users read on the Web
• J. Nielsen, J. Morkes - Applying writing guidelines to Web pages

Readable Content

• W3C - Internationalization: Language tags in HTML
• W3C - Authoring HTML: Language declarations
• Acronym Finder
• Abbreviations
• Plain Language Association International - Plain Language
• The US Government’s plain language guideline
• Dublin Core Qualifiers
• IMS Global - Accessibility learner information data structure description
• TextQuest - Readability analysis
• Leesbaar Nederlands (Readable Dutch)
• Flesch-Kincaid readability tests
• European standards for making information easy to read and understand
• W3C Quality Assurance, Use standard redirects: don’t break the back button
• W3C HTTP Protocol – Redirection

Mobile Accessibility

• 7 Easy Steps to Making your App Accessible

If you know of other Key documents we should consider please use feature at bottom of page to send us information about it.