“One of the most important parts in visual effects, and also one of the easiest and cheaper one to do is a matte painting. Regardless of whether it is painted on a piece of glass or generated on computer it serves one purpose ‘ creating or extending the virtual space of the scene”
http://www.3dtotal.com/team/Tutorials/mattepainting/mattepainting_1.phpMatte Painting for Film and Television
This is not on MrBluesummers.com