I always wish it was true but never surfed the net hard enough to find it. But today the light shined down on me from the gates of the graffitoheaven palimpset. Cassidy Curtis, a.k.a. Otherthings ,has been working on an archeological tracking method for graffiti. His website Graffiti Archeology does just that. Maybe there would be a way to contact him and add to his list of walls of fame.