USC Free Culture is hosting a panel discussion this evening on reinvigorating Los Angeles' open space. What we can do with artistic expression, do-it-yourself technology and the public domain to preserve and enhance LA's 500 square miles of diverse culture before our greatest spaces are swallowed up by thinly veiled corporate interests? What type of “knowledge ecology” is possible in a city devoted to fame, celebrity and image? USC's Taper Hall, Rm 301 3501......