Noisebridge -- A San-Francisco-based hacker collective, in its early stages, soon to file for nonprofit status and rent a space

NYC Resistor -- A sweet hacker collective with a space in Brooklyn

Teuthis -- Raphael Abrams is an artist, electronics geek, and long time friend of mine. He's the creator of the Daisy mp3 player kit that Make Magazine sells, and is one of the founders of NYC Resistor.

San Francisco Bicycle Coalition -- The SFBC promotes bicycle transportation and a pleasant urban environment.