1. Bumpbox 2.0 Mootools lightbox clone
A lightbox clone with support of PDF, flv, swf, audio, images, inline HTML and remote html files. Useful script for web design.
Compact and easy-to-use script that allows you to show enlarged images in the pop-up boxes. Website is in Russian language though.
3. Control.Modal windowing toolkit for Prototype
A fully programmable, multi-purpose windowing toolkit for Prototype.
Easy-to-use, can work with pictures, flash, FLV, YouTube, DivX and iframes.
5. FancyZoom using the jQuery library
This lightbox plugin works with any images, text, headings and flash.
It can be used to display websites, images (and galleries) and other content in a pop-up window.