SAN FRANCISCO - Twitter on Thursday launched a new form of targeted advertising, allowing companies to deliver "promoted tweets" to customers who show interest in the brand through Web browsing.Full article
AMSTERDAM - Philips and Samsung Electronics said on Friday they were among the companies visited by European Commission officers this week on suspicion of breaking competition rules, and that they were cooperating with the inspectors. Full article
SHANGHAI - China's government banned financial institutions from trading in bitcoin on Thursday, in what analysts said was a restrained first step towards regulating the digital currency that has exploded in popularity in China and soared in value in recent months. Full article
SAN FRANCISCO - Microsoft Corp said on Thursday it had disrupted the largest network of compromised personal computers, involving some 2 million machines around the world, since it stepped up its battle against organized online criminals three years ago. Full article
SAN FRANCISCO - The agency that oversees development in the San Francisco Bay in California has begun a formal investigation into the construction of a secretive Google Inc barge on an island in the bay. Full article
SAN FRANCISCO - Billionaire investor Carl Icahn said on Wednesday that he has filed a shareholder proposal with Apple for a much smaller stock buyback plan than he has advocated previously, as he continued to pressure Apple to share more of its cash pile.