Microsoft, Yahoo! join forces in IM

Marissa Mayer has made her boldest move to date as chief of Yahoo! with the billion-dollar purchase of Tumblr, a popular blogging platform she vowed not to ruin after protests from youthful users.

Yahoo's CEO is making a $1.1 billion bet on the online blogging forum Tumblr as Marissa Mayer tries to make a former Internet icon cool again.

Yahoo! is just under two decades old and already showing signs of age. Tumblr, the cool blogging platform, represents a new generation.

Tumblr lovers were quick to express ire in trademark sassy posts Monday after news that Yahoo! is buying the blogging platform in a $1.1 billion deal.

Yahoo Japan Corp. has said it suspects up to 22 million user IDs may have been stolen during an unauthorised attempt to access the administrative system of its Yahoo! Japan portal.

Yahoo! scheduled a news conference Monday amid reports it was in talks on with the popular blogging platform Tumblr about an acquisition or strategic alliance.

US online giant Amazon has unveiled plans for a futuristic greenhouse style headquarters "where employees can work and socialize in a more natural, park-like setting."

American teenagers are sharing more information about themselves on social media sites, but taking steps to protect their privacy online, a study showed Tuesday.

A high-tech startup is wading into the gun control debate with a cellphone controller that would allow gun owners to know when their weapon is being moved—and disable it remotely.

Ninety-seven teams from 28 Colorado schools participated in last week's car competitions hosted by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL).

(AP)—Best Buy Co. on Tuesday reported a loss for its fiscal first quarter as it sold its stake in Best Buy Europe and works on a turnaround plan that includes cutting costs and closing some stores.

The Senate dragged Apple Inc., the world's most valuable company, into the debate over the U.S. tax code Tuesday, grilling CEO Tim Cook over allegations that its Irish subsidiaries help the company avoid ...