Photo by Andy Sternberg/LAist A posthumous tribute wall dedicated to singer/songwriter Elliot Smith sat defaced by graffiti for months on end -- LAist said enough, so did the fans and city council.SFist was surprised to learn that chronic presidential candidate Ralph Nader picked former San Francisco Supervisor Matt Gonzalez as his running mate.Phillyist explored the possibilities of green cleaning.In the latest edition of Reel Toronto, a bi-weekly feature looking at films shot in Toronto......