DOM, Ajax and other jQuery plugins

FlyDOM.
jQuery Dimenion Plugin.
jQuery Loggin.
Metadata - extract metadata from classes, attributes, elements.
Super-tiny Client-Side Include Javascript jQuery Plugin.
Undo Made Easy with Ajax.
JHeartbeat - periodically poll the server.
Lazy Load Plugin.
Live Query.
jQuery Timers.
jQuery Share it - display social bookmarking icons.
jQuery serverCookieJar.
jQuery autoSave.
jQuery Puffer.
jQuery iFrame Plugin.
Cookie Plugin for jQuery.
jQuery Spy - awesome plugin.
Effect Delay Trick.
jQuick - a quick tag creator for jQuery.
Metaobjects.
elementReady.