Tooltip plugin: A grumble can be rotated around a given element at any angle, all 360 degrees. Any distance can be specified. Any CSS style can be applied. There's auto-magic size adjustment for use with localised text. FX queues for animating multiple grumbles. And it works in IE6+, and modern browsers.
jQuery Bubble Popup is a plugin to display smart, animated & shadowed, "bubble" popups or tooltips with few lines of code in jQuery. The plugin support HTML5 and it is fully compatible with IE, Firefox, Chrome, Opera and Safari. It needs jQuery v.1.4.2 to run, the fastest and concise JavaScript Library.
Awkward Showcase is a plugin for the JavaScript Framework jQuery. We call it a Content Slider. But it can do more then just slide the content. For example you can add tooltips, enable thumbnails, activate dynamic height and lots more.