I enjoyed this story as well, and could see how graffiti could be a form of Visual Networks as long as the artist(s) have permission to create the work. In some neighborhoods where graffiti has been encouraged and they choose the best “Artist” for the project it can really add to the flavor of a neighborhood. In addition, it is an exciting format for the artist because full sketches and preliminary designs need to be created prior to the final painting. I agree with Matthew that Graffiti is similar to Flicker in the sense that you are sharing all of your artistic work with the world. Keep up the good work Matthew!