A collection of resources for Javascript developers who want to write modern, accessible, portal-safe JavaScript.

Fluid's DHTML Developer Checklist: keyboard accessibility, ARIA, name-spacing, and other techniques
Namespacing your JavaScript by Dustin Diaz: article on how to use closures to define your own private namespace.

Pro Javascript Techniques by John Resig: The best source for reliable, unobtrustive JavaScript programming techniques, from the guy who wrote jQuery.
JavaScript: The Definitive Guide by David Flanagan: The only reliable JavaScript reference book available. Period.
Eloquent JavaScript by Marijn Haverbeke: JavaScript overview, very broad tutorial from beginner to advanced [e-book]

eJohn, John Resig's JavaScript blog. Filled with tons of techniques, advice, and news.
Ajaxian: All AJAX news, all the time [blog]

Lazy Function Definition Pattern: redefine your functions on the fly, great for init blocks [blog article]
A Plugin Development Pattern: how to create a well-encapsulated jQuery plugin
JavaScript Closures FAQ: everything you ever wanted to know about closures in JavaScript
Five Ajax Anti-Patterns: Things to avoid when using client-side Ajax
Seven JavaScript Techniques You Should Be Using Today by Dustin Diaz: a general overview of branching (nice use of try/catch), redefining functions, flags, bridges, event delegation (jQuery gives you this for free), encapsulation and closure, and creativity.

jQuery Accessibility Board [google group]
Key-navigable custom DHTML widgets: Advice on how to make your interfaces keyboard accessible.
Mozilla Developer Centre's ARIA Tutorial: An overview of the W3C's Accessible Rich Internet Applications specs.
Fluid's DHTML Developer Checklist: keyboard accessibility, ARIA, name-spacing [Fluid document]

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