London buses will soon carry the world’s first GPS advertising. Yell.com has retained 25 buses outfitted with digital LED panels that will show messages matching the bus’s geographical position. Yell.com is using the GPS panel system as part of a five-month campaign to raise awareness of its local search facility. Besides intelligent buses, the campaign (developed by AKQA) also includes knowledgeable bus shelters: interactive screens on bus shelters will highlight local shops, restaurants and bars and help users find their way. Time to set up an ad agency specialising in GPS/location based services?! On a related note, if you’re interested in catering to consumers’ desire for information, giving them the info when and where they need it, check out trendwatching.com’s infolust.