From my readings about Wi-Fi, I’ve discovered the pastime called wardriving or netstumbling, which involves driving around with a wireless-equipped laptop looking for unsecured access points. These are being compiled into a database so that users can access unused bandwidth. A related project involves various attempts to set up these free networks voluntarily, offering, as John Markoff says in his article, “the promise of a vastly more powerful collaboration driven by the same forces that originally built the Internet.”