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Despite overwhelming interest in its I.P.O., Facebook is facing concerns over its ability to attract enough advertising revenue.

Twitter said it would allow users to opt out of cookies that collect personal information used for advertising.

Agilent Technologies, a maker of scientific instruments, has agreed to buy Dako, a Danish cancer diagnostics company, for $2.2 billion.

Suggestions for improving the audio quality of Skype calls.

It wasn’t long before scammers and phishers found their way onto Pinterest, the growing social-network site.

It wasn’t long before scammers and phishers found their way onto Pinterest, the growing social-network site.

Facebook will offer 421 million shares, 25 percent more than it had planned to offer, in response to high demand.

Olympus’s new LS-100 recorder may look like a piece of military machinery, but it is actually an eight-track recorder you can slip into your pocket.

Olympus’s new LS-100 recorder may look like a piece of military machinery, but it is actually an eight-track recorder you can slip into your pocket.

Scientists reported that a tiny brain implant allowed two quadriplegic people to manipulate a robotic arm with just their thoughts.

The loss of $10 million in ad dollars does not represent a financial disaster for Facebook, but it is a public relations headache so close to the company’s initial stock offering this week.

Alisher B. Usmanov’s investments in the social media giant could be worth at least $6 billion when the company goes public.

When it comes to the underlying technology providers that matter for mobile app developers, there’s Google and Apple, with Microsoft as an also-ran. But as television begins to resemble the mobile business, Microsoft is in the lead with the Xbox, according to a new report out Wednesday from Forrester Research.

When it comes to the underlying technology providers that matter for mobile app developers, there’s Google and Apple, with Microsoft as an also-ran. But as television begins to resemble the mobile business, Microsoft is in the lead with the Xbox, according to a new report out Wednesday from Forrester Research.