Flash mobs have arrived in Chicago, IL, USA - 'An inexplicable, not-so-random gathering of somewhat related people in a physical location to participate in peaceful activities for a brief time period then quickly dissipate.' There is a Chicago Flash Mobs e-mail group at http://groups.yahoo.com/group/chicagomobs/, and a Chicago Flash Mobs text messaging group at http://www.upoc.com/group.jsp?group=chicagomobs (from Light Red).