GrubHub quarterly revenue beats as orders increase

(Reuters) - Online food order and delivery company GrubHub Inc reported a better-than-expected quarterly revenue, as more diners used its services to place orders. The company, which has a delivery network spread across 1,100 U.S. cities as well as London, also forecast revenue of $136 million-$138 million for the current quarter, largely above analysts' average estimate of $136.2 million, according to Thomson Reuters I/B/E/S. The number of active diners rose 19.5 percent to 7.7 million, the com