Jeremy Keith and Derek Featherstone talked about how Ajax and Accessibility can live in harmony with each other at SXSW07. Topics covered include: progressive enhancement, the 3 layers of the web (content, presentation and behavior), thin vs. rich clients, XMLHttpRequest object, patterns, screen readers, and much more.
Here are their presentation notes (.pdf) as well.
In an issue of Treehouse magazine, Jeremy Keith wrote an excellent article (.pdf) about the history of JavaScript. He explained the beginnings of JavaScript, the emergence of DOM scripting and the importance of standards-based scripting focsing on the separation of layers.
Jeremy Keith author of DOM Scripting: Web Design with JavaScript and Bulletproof Ajax and JavaScript guru along with Aaron Gustafson gave a talk about JavaScript and the DOM at SXSW06.
Here are the online slides that were given during the presentation.