A re-introduction to JavaScript from the Mozilla Developer center. I challenge you to find a more clear and comprehensive overview of the JavaScript language. Covers everything from the history of the language to its more advanced concepts (closures, memory leaks, etc.)
Code Conventions for the JavaScript Programming Language from Crockford. The man, the myth, the legend. Everything he’s written about JavaScript should be read, but this article in particular offers a good starting point.
The Elements of JavaScript Style Part One, and Part Two, again from Crockford. Together with the aforementioned Code Conventions article, they make a pretty good basis for writing clean, efficient code.
Best Practices for Speeding Up Your Web Site from Yahoo. The JavaScript advice is invaluable. It talks about the big stuff that will actually make a noticeable difference to your users.
The JavaScript Reference Series by Pat Hunlock. Much more comprehensive and useful than similar, more common references (I’m looking at you w3Schools).
