The New York Metropolitan Transportation Authority is testing digital ads on the sides of buses that use GPS to target ads towards specific neighbourhoods. They can also do "day-parting" (coffee ads before work, beer ads after work... no downtime in between). Makes sense: retailers and other advertisers get TV style communications that talk about offers within walking distance. It's obviously a little like location-based media on your mobile, except with a big smelly bus crawling by, there's reminder that an ad exists for this area.

(via Gizmodo)