http://www.Zedz.org

http://www.deltainc.nl

Both of these guys are artists that one my friends knows through the graffiti realm. My friend says:

These are two Graffiti artists that I have shown with in different exhibits over the years. Both are from Amsterdam and both work closely with architects and designers. Both come from an industrial design background having gone to school for it and then worked in the field for a few years before going full time with their art.

Interesting lines... Zedz site is irritating at first, but once you get the navigation down (along the right), it's cool. Delta's is more straight forward.