http://www.cbsnews.com/stories/2003/08/20/earlyshow/contributors/dannylipford/main569344.shtml

Jeld-Wen
http://www.jeld-wen.com/exteriordoors/fiberglass/

Ordering an IWP Door System:

http://www.iwpdoor.com/order.htm

on ThermaTru:
http://www.housingzone.com/topics/therma/design/ther00ev001.asp