Dr. Jon Gunderson is the Coordinator of Assistive Communication and Information Technology Accessibility in the Division of Disability Resources and Education Services (DRES) at the University of Illinois in Champaign/Urbana, Illinois. He leads the development of open source web accessibility evaluation tools and coding practices resources to help web designers and developers understand accessible coding techniques. He is the past chair of the W3C User Agent Working Group and currently involved in the W3C ARIA Working Group. As a member of the W3C ARIA Working Group has been a major contributor to the ARIA Authoring Practices and the automated testing of ATIA implementation in browsers for the Windows platform. He has given numerous presentations, workshops and courses related to web accessibility. He leads the development of the Accessibility Inspectors for Firefox and Firebug and the Functional Web Accessibility Evaluator (FAE) service. The tools can be used to help verify the use of the HTML4, HTML5 and ARIA techniques to implement the requirements of the Section 508 and W3C Web Content Accessibility Guidelines 2.0.