实用的JQuery插件和演示（jQuery Plugins and Demos）

Plugins

BlockUI Plugin (Updated 09-SEP-2009)
Simulate synchronous ajax by blocking - not locking - the UI.
Corner plugin (Updated 08-SEP-2009)
Rounded corners without images. Plus lots of other corner adornments.
Cycle Plugin (Updated 09-SEP-2009)
Image or text slideshows with numerous transition options.
Feeds Plugin
Wraps the jQuery syntax around the Google AJAX Feed API.
Form Plugin (Updated 09-SEP-2009)
All kinds of information about the Form Plugin including a quick start guide, code samples, API documentation, a FAQ and more.
HoverPulse Plugin (Updated 26-FEB-2009)
Pulse an image on mouse hover.
Media Plugin (Updated 26-MAR-2009)
One plugin for handling your Flash, Quicktime, Windows Media Player, Real Player, MP3, Silverlight, PDF and more.
Taconite Plugin (Updated 09-SEP-2009)
A port of Taconite to jQuery. Make multiple DOM manipulations in response to a single remote call.

Demos

Ajax Events Demo (Added 26-OCT-2008)
Demonstrates how jQuery's global ajax events work.
Custom Expressions
Demo page which shows how you can extend jQuery's ':' expressions with your own favorites. http://malsup.com/jquery/