via vimeo.com
While I don't think I'd appreciate someone spraying an inconsequential tag on the side of my house, I can't deny the beauty of some graffiti. Sure the simple pre-pubescent name tag is like the Foursquare tweet after the fact. Like a well-conceived blog entry, however, complex graffiti art can have gravitas, relevance and consequence, often bringing colourful chaos to bleak order.