Facebook Ireland paid only €3.4m in corporate tax last year in spite of revenues rocketing by over €1.8bn to €4.83bn.

The corporate tax bill for the Irish arm of Facebook more than halved to just €2.3m last year in spite of revenues rocketing to €3bn.

LinkedIn is seeking a new international headquarters in Dublin as the professional social-networking company expands its overseas operations, two people with knowledge of the matter said.

Facebook Inc is proposing to clarify how it manages user data for advertisements, as part of an agreement stemming from a settlement of a class-action lawsuit.

Trading in shares of more than 3,000 US companies listed by Nasdaq, including Google, Apple and Microsoft, was abruptly halted shortly after midday yesterday because of a technical problem, the latest black eye for the US securities trading business.

Facebook has topped one billion users, but the past few months have not been easy.

The net worth of the richest Americans grew by 13% in the past year to $1.7 trillion (€1.3tn), Forbes magazine said, and a familiar cast populated the top of the annual list, including Bill Gates, Warren Buffett, Larry Ellison and the Koch brothers.

Facebook Inc, reporting its first results since selling shares to the public, posted sales that topped analysts’ estimates, signalling buoyant demand for advertising and reassuring investors who have pummelled the shares on concern over the company’s growth prospects.

Normally a big decline would set up Wall Street for a technical rebound.

FACEBOOK Inc’s plan to relocate its main US base to Menlo Park, California, may result in $366 million (€274m) in new temporary construction spending in the surrounding area.

PAUL CEGLIA, who claims he has a contract that gives him half of Facebook Inc founder Mark Zuckerberg’s holdings, was ordered to return to the US from Ireland to locate evidence in his case.

GOOGLE, owner of the world’s largest internet search engine, reported sales and profit that topped analysts’ estimates, a sign the company is benefiting from an effort to expand into mobile and display advertising.

ONLINE game company Zynga filed for an initial public offering (IPO) yesterday, hoping to raise up to $1 billion (€688m).

THE New York man suing over claims that he owns 84% of Facebook Inc has a copy of a $3,000 (€3,638) cashier’s cheque that may support his contract claim against the company and chief executive Mark Zuckerberg.