Post 'Em Notes Script by flooble.com
Still using footnotes to annotate your pages? In the age of the internet, there has to be a better way. Thanks to flooble's Post 'Em Notes, now there is. You can quickly & easily add dynamic instan notes to your pages: visitors click a little stylish link to have more information pop up inside of a div layer - no extra pages are loaded. Free, fast and compatible.