jQuery Extension Plugins

    * jQuery Easing - Set custom easing types for standard animations. [Note] Doesn't seem to work with the compressed jQuery-Source in IE. George Smith

    * Easy DOM Creation - simply build DOM structures using jQuery-like syntax. Michael Geary

    * Easy DOM Creation - A slightly different implementation, that provides the capability of JSON based templates. (Also refer to Neytema's Lithuanian site.)

    * Closures - Add closure capabilities to jQuery (will probably be integrated into the jQuery base soon). Michael Geary

    * JSON - import external JSON data sources. Michael Geary

    * WrapInner - Allows the wrapping of text inside an element. Christian Bach

    * Inline editing - Changes text into an editable form field, and submits to server on Enter. Dylan Verheul

    * AutoHelp - On form element focus displays some help text. Dylan Verheul

    * Taconite with jQuery - Excellent mimic of the popular Taconite utility. Relies on tag markup added to the XHTML document to demark its 'commands'.

    * jXs for jQuery - very similar to the Taconite plug-in, but its implementation is different. It also allows for user extensibility.

    * jQBrowser - Extend jQuery’s browser detection capabilities. Dave Cardwell

    * jQMinMax - Add min-/max- height & width support. Dave Cardwell

    * jQEm - Interact with the base 'em' unit. Dave Cardwell

    * JHeartbeat Allows a web page to periodically poll the server. This polling can be used to keep the user's session alive or to download updated information. Jason Levine

    * mousewheel - Adds a mousewheel and unmousewheel event to jQuery. Brandon Aaron

    * toXML - Serialize DOM elements to an XML string. Mark Gibson

    * jQarray - allows you to reverse or sort the order elements appear in the jQuery element collection.

    * limitQueue - it allows you to specify the limit of queue. This is especially useful when two opposite effects interact on one DOM element.

    * getURLParams - It allows you to check / get specific URL parameters.

    * cookie - A cookie utility plugin. Read, write, delete cookies. Klaus Hartl