Colourscape --------- http://www.pale.org/photos/colourscape/
http://www.chiltern.demon.co.uk/Colourscape.html
Smartarch ------------- http://www.smartarch.nl/theory/best_before.html
Archinform ------------ http://www.archinform.net/projekte/8632.htm
Arch for Humanity - http://www.archforhumanity.com
Greenpeace ---------- http://www.greenpeace.org/~usa/updates/97_4_22.html