jQuerylabs is a giant collection of the best jQuery plugins and interesting links on the web!

Avgrund popup adds a bit of wow to your pop-up content by blurring the page content and pushing it back in Z space, before bringing up the modal dialog

Gridster is a plugin thathelps you build intuitive draggable layouts from elements spanning multiple columns.

Complexify helps your users accurately gauge the quality of their password and then give them visual feedback to enforce a minimum level of security.