Tooltipster is a lightweight jQuery plugin that enables you to easily create clean, HTML5 validated tooltips.
* Supports HTML tags inside the tooltip
* Lightweight and degradable
* Extremely flexible & fast to set up
* Easily styled with 100% CSS - no images needed
* Plays nicely with IE
tooltipsy is a jQuery tooltip plugin that simply provide extremely efficient tooltip functionality. Tooltipsy gives you complete control over the CSS, animation, and position.