Chosen is a javascript plug-in that makes long, unwieldy select boxes much more user-friendly. It is currently available in both jQuery and Prototype flavors.
JavaScript/jQuery training videos.
http://jqapi.com -- a cool jQuery documentation project.
MobilyBlocks, a jQuery plugin (2KB) that allows you to create an unordered list as an animated circle.
jQuery tooltips!
Yet another jQuery slider! These things are getting more polished and complex, with no obvious sluggishness.
JPolite V2: A Lightweight Portal Framework based on jQuery Think a rougher, less-polished Netvibes. V3 might really shine.
Galleria--a stylish jQuery gallery script.
10 11 Smart JavaScript Techniques for Manipulating Content
Thickbox modal window, with cookies
