Groupon outlook disappoints, shares slide after hours

Groupon Inc's forecast for first-quarter results fell short of Wall Street's expectations, as the online commerce company has been struggling to rev up sales and profit growth. The daily deals and online retail company forecast revenue of $790 million (513.5 million pounds) to $840 million in the March quarter, up 13 percent from a year earlier on a foreign exchange-neutral basis. The company that once dominated the fast-growing online coupons arena reported earnings, excluding one-tim