– 7 hours ago @ businessinsider.com: Yelp is indispensable to local searchers, especially those inclined to make a purchase. Ninety-three percent of U.S. Yelp users in a recent Nielsen study said they at least occasionally make a purchase from a local business after using Yelp. On mobile, Yelp’s local services are even more relevant, making the company a bellwether for the huge opportunity in local-mobile marketing.