Digital Be-In: EcoCity

SF's most eco-friendly nightclub's promoting home-greening with top DJs (Dragonfly, Neptune, Dr. Spook, more), live sets (the String Cheese Incidents' Michael Kang), and Exploratorium-style exhibits like a chlorophyll-based air purifier, and a bike that powers small appliances like lightbulbs and space heaters -- a device whose utility's least appreciated by the guy who has to feverishly pedal.