Here is the link to the website I showed in class:
http://www.luminous-landscape.com/tutorials/colour_theory.shtml
http://www.graphics.com/modules.php?name=Sections&op=viewarticle&artid=503
http://www.youtube.com/watch?v=fNisT6ROdUo
http://www.youtube.com/watch?v=59QGexKdFUI&feature=related
