GRL

The guys from the Graffiti Research Lab do some very interesting things with technology and as they call it "hacking a urban enviroment"

The GRL is more well known for their introduction and tutorial of making LED throwies.



Graffiti Research Lab, founded by Evan Roth and James Powderly during their fellowships at the Eyebeam OpenLab, is an art group dedicated to outfitting graffiti writers, artists and protesters with open source technologies for urban communication. The members of the group experiment in a lab and in the field to develop and test a range of experimental technologies. They document those efforts with video documentation and DIY instructions for each project and make it available for everybody.

source: http://en.wikipedia.org/wiki/Graffiti_Research_Lab