Understanding Web Content Accessibility Guidelines (WCAG) is a daunting task at the best of times.
How it applies to the Accessibility for Ontarians with Disabilities Act (AODA) can also be very challenging but this Resource will make it somewhat easier for you and your Web Developers to research and understand what Guidelines you need to follow to make your Website compliant.
Check it out at
http://www.aoda.ca/wcag/