Patrick Thomson draws a parallel between Haskell monads and jQuery method chaining. The result is the easiest introduction to the concept of monads I've ever read.
jQuery, the best Javascript library, will be included as part of the Nokia and Microsoft web development platforms.
John Resig, the author of the amazing jQuery library, has published his interactive presentation on advanced Javascript topics like first class functions, closures and prototype based OOP. The talk also covers his Javascript port of the Processing language and offers a new demo that compares it with direct Javascript + Canvas programming. More in his blog.
The latest issue of a A List Apart is out and features an article on advanced rollovers with Javascript and CSS. It's also a nice introduction to jQuery.