When users search for local specials, Foursquare will allow brands to promote check-in deals with the new paid search ads coming this June. The new ad technology will be powered by the ‘explore’ algorithms, Foursquare's search system that presents recommendations based on previous check-ins--including friend check-ins. The probable test subjects for the new advertising technology will be Pepsi, Whole Foods and Dunkin’ Donuts, which have served Foursquare as premiere clients. The new technology will help the company further monetize it's user base.