this story in today's Inquirer caught my eye ...
Ads to adorn Phila.'s new shelters, benches
By Joseph A. Slobodzian
Inquirer Staff Writer
It will be one of the Street administration's last acts: awarding a 20-year contract - likely the largest in Philadelphia history - that will change the look of city streets and pump millions into the city treasury. The subject is "street furniture" and no, it's not the kitchen chairs Philadelphians put out after a snowstorm to save their parking spot.
City officials are now weighing proposals from three companies to design, install and maintain - for the next two decades - hundreds of new bus shelters, newsstands, trash receptacles, public toilets and benches. In return, the winning contractor will get the chance to sell advertising in places that so far have been ad-less.
http://www.philly.com/philly/hp/news...furniture.html