Resolving Issues with Bullets for 508 Compliance, text readers, and read aloud functions...plus a little background info on why bullets can be so complicated. - Blog update for www.Section508CompliantPDFs.com
A Designer's Guide to Accessibility and 508 Compliance
Training, instructional design, games, 508 compliance services.
Making Files Accessible | HHS.gov. A great place to begin learning 508 compliance.
Navigo Kiosk With Braille Keyboard Meets Section 508 Compliance Standards | Digital Signage Connection
Tools for checking 508 Web Compliance http://www.w3.org/WAI/RC/tools/complete
A Designer's Guide to Web Accessibility, difference between 508 compliance and true accessibility, etc.
DOJ 2012 Section 508 Report
508 compliance and data viz
WebAIM: Section 508 Checklist Document with tables to use as a checklist for 508 compliance.