Here is a list of the other sites that we found useful when compiling our checklist.
General guides
Arts Council England Action for Access 2004
Government posters about accessibility
Function Central’s Event Accessibility guide
Guides for visual barriers
UK Association of Accessible fonts
Guide for audio barriers
Guides for cognitive barriers
Change’s Guide to Making Easy Read Documents
Program specific guides
Make Word Documents Accessible (WebAim)
Make Word Documents Accessible (Microsoft)
Converting from Word to a tagged PDF (WebAim)
Tagging PDFs in Acrobat (WebAim)
Make PowerPoint Accessible (Microsoft)
Make Excel Documents Accessible (Mircrosoft)
Adding captions to Facebook and YouTube