Business services firms’ shares bleed as LinkedIn, Tableau crash

NEW YORK (Reuters) – Dismal sales outlooks from LinkedIn Corp and Tableau Software sent their shares crashing hard on Friday, reverberating through the technology sector.LinkedIn shares plunged as much as 43 percent, wiping out about $11 billion of market value, after the social network for professionals shocked Wall Street with a revenue forecast that fell far short of expectations. At least seven brokerages downgraded the stock from “buy” to “hold” or their equiva