JQuery official website
jQuery’s website, where you can download the jquery functions and find loads of useful plugins.
An excellent blog to help get you from jQuery beginner to intermediate and on to advanced.You can also filter posts by skill level.
jQuery cheat sheet
One page cheat sheet printout with quick references to all of the jQuery library.
jQuery Style
Lacking Inspiration? Check out this collection of jQuery powered sites, tutorials, plugins and screencasts.