(Reuters) - Even as Facebook fever grips investors ahead of the social networking giant's potential $100 billion-plus initial public offering, its breakneck growth in Asia may be slowing as it moves beyond desktop users to those who access the Internet largely or solely from a mobile phone. In March, Facebook revised its own SEC filings to scale back its scope for further growth in India - its third-biggest user base and the largest population it currently has access to - China remains off-limits to Facebook. And independent data show that user numbers in Indonesia and the Philippines, its other largest Asia user bases, have actually fallen off slightly in the past three months.

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(Reuters) - Groupon Inc Chief Executive Andrew Mason and the company's other founders are planning to keep their shares in the company after a trading lock-up expires on June 1. Groupon's lock-up expiration will allow some pre-initial-public-offering investors to sell their shares, and analysts say that the approach of the expiration has put Groupon's stock under additional pressure.

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(Reuters) - General Motors Co (GM.N) opted to build the next generation of its Astra compact in Britain, leaving its plant in Bochum, Germany in danger of closure as it revamps the business to counter more than a decade of losses in Europe. The U.S. carmaker said on Thursday it would invest $200 million in its Ellesmere Port plant in northwest England to build the car after workers at the site overwhelmingly agreed to a new pay deal.

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(Reuters) - Stocks closed lower in a choppy session on Wednesday, with the S&P 500 logging its fourth straight decline as investors worried about Greece's future as a member of the euro zone. Early U.S. gains were erased after the European Central Bank said it had stopped providing liquidity to some Greek banks that had not been recapitalized. The ECB's move caused some market confusion, adding to volatility as traders have a quick trigger finger when it comes to news about Greece.

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(Reuters) - JPMorgan Chase & Co was the target of two separate lawsuits by shareholders on Wednesday, accusing the bank and its management of excessive risk that led to trading losses of at least $2 billion. A spokesman for JPMorgan Chase declined to comment on the lawsuits, which were filed in U.S. District Court in Manhattan, days after Chief Executive Jamie Dimon's May 10 statement that a "failed hedging strategy" caused the massive loss over the last month.

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(Reuters) - FBI Director Robert Mueller on Wednesday confirmed that the agency has opened a "preliminary investigation" into JPMorgan Chase & Co (JPM.N), the nation's largest bank. JPMorgan disclosed last week that it had suffered a multibillion-dollar trading loss due to a failed hedging strategy.

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(Reuters) - Out past the vacant storefronts and abandoned buildings, beyond the shuttered steel mills and decaying industrial plants, residents of eastern Ohio suddenly are seeing dollar signs. In a region more accustomed to hard times than optimism, residents hope that a boom in shale gas drilling using the controversial technique of hydraulic fracturing - or "fracking" - will lead to wealth, jobs and a reservoir of domestic energy that could dramatically boost the area's fortunes.

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(Reuters) - Shareholders have asked a judge to delay Chesapeake Energy Corp's (CHK.N) annual meeting, arguing that more disclosures are needed about Chief Executive Aubrey McClendon's compensation and personal loans taken out against his share in company wells. Investors need more information to make "an informed vote" on three shareholder proposals and the re-election of Richard Davidson and Burns Harris to the board of directors at the meeting planned for June 8, said the motion filed in U.S. District Court in Oklahoma City, Oklahoma.

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(Reuters) - On the face of it, Universal Music Group's bid to buy a big chunk of EMI stands to make the world's leading music company an even more formidable force, combining Universal's star lineup of Lady Gaga and Rihanna with the British company's deep library of The Beatles, Pink Floyd and Katy Perry. Certainly the fierce opposition from rival Warner Music Group, consumer groups and independent music companies makes it seem that way. They have all vowed to fight it tooth and nail, telling U.S. and European regulators that the merger would create a behemoth capable of controlling the future of digital media by withholding content from digital music startups.

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(Reuters) - Consumer shares led a modest rebound on Wall Street on Tuesday, after the S&P 500 fell for four of the past five sessions, but gains were capped as investors kept an eye on the political impasse in Greece. Quarterly results helped boost the S&P consumer discretionary sector index, with TJX (TJX.N) up 7.4 percent at $42.65 and Dick's Sporting Goods (DKS.N) up 9.2 percent at $51.59. The S&P retail sector index .RLX rose 1.5 percent.

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