- http://www.photoshopessentials.com/photo-effects/invert-colors/page-2.php
- http://nrichter.valley-lutheran.iowapages.org/id1.html
- http://boyesandgirl.com/images/portland_hood.jpg
- http://www.headfirstlabs.com/books/hfwd/ch01/images/body_bg.gif
- http://search.oreilly.com/?q=redlantern.html
- http://www.gfxvoid.com/forums/showthread.php?t=1256
- http://www.headfirstlabs.com/books/hfwd/
