Rebel Dell shareholder demands more information

Dell's largest independent shareholder is turning up the pressure against the proposed $24.4 billion sale of the struggling personal computer maker to a group of investors that includes its CEO.

Groupon hammered after fresh losses

Groupon shares took a nosedive Wednesday after the online deals giant surprised markets by reporting fresh losses in the past quarter and a weaker-than-expected outlook.

BlackBerry says new phones won't be sold in Japan

The smartphone maker BlackBerry confirmed Friday that it has no immediate plans to sell its new handsets in Japan, but the company denied it was abandoning one of the world's most tech-savvy nations.

Sony to announce launch of new PlayStation

Sony will this month announce the late 2013 launch of its latest PlayStation console, Japanese media said Thursday, as is looks to its games business in a bid to repair its tattered finances.

Social media pays off for businesses, study shows

(Phys.org)—Customers who connect with a business through social media will go to the business more frequently and contribute more to its bottom line, according to a new study from the University at Buffalo School of Management.

Facebook to be part of Nasdaq 100 index

Facebook will become part of the Nasdaq 100 index of the largest non-financial companies listed on the electronic exchange, the market operator said Wednesday.

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