Lightbox JS v2.0
from Diigo
Lightbox JS v2.0
ThickBox 2.1
Amberjack: Site Tour Creator - Simple. Free. Open Source.
Best of March 2007 | Smashing Magazine
Best of March 2007 | Smashing Magazine
script.aculo.us - web 2.0 javascript
David Walsh Blog - CSS, MooTools, jQuery, PHP