Prof. Naoki Ueno from Mushashi Institute of Technology, Yokohama visited University of Oulu on September 1st, 2006. He gave an interesting presentation and demo on various experiments to use a web tool named NOTA to gather and share city location related information among various communities, like within a group of citizens trying to improve traffic safety, or graffiti-makers trying to get their art socially accepted.

Unfortunately the demos are mostly in Japanese, but one can get a glimpse from here. This demonstration shows how location based tools have been used by graffiti makers. Click the topmost grey button with japanese text, and the map will be populated with balloon symbols showing locations of graffiti art utilizing the Google map service. Click the second topmost button to get new symbols on the map. Click the balloon symbols for details on the graffitis.