The Internet giant said it had received 12,000 to 13,000 requests for data from American law enforcement authorities from December through May. Unlike other technology companies making similar disclosures, Yahoo did not say how many users were affected.    

The designers of the Solar Impulse are tackling the challenge of accommodating the pilot of the electric-powered craft.    

Apple joined the list of companies that have disclosed information about government surveillance, but many questions remain unanswered.    

A company plans to excavate a landfill in the New Mexico desert where Atari is rumored to have dumped millions of copies of the video game E.T. after it flopped in 1983.    

The portable chargers for wireless devices will rotate among areas in New York City until October.    

Google sought permission to publish more granular data on national security requests than Facebook or Microsoft published, and said anything less didn’t provide enough transparency.    

The Minx Air 200 wireless speaker from Cambridge Audio delivers big sound while allowing users to personalize their listening experiences.    

Eddy Cue, a senior vice president at Apple, denied the government’s charges that the company was working with e-book publishers to raise prices.    

Google has resolved a shareholder lawsuit blocking a long-delayed stock split, clearing the way for the Internet search leader to issue a new class of non-voting shares later this year.    

From the outside, most smartphones look the same, and technology companies seem to be making a bigger effort to distinguish themselves by the interface experience.    

China now has the world’s fastest supercomputer, powered entirely with Intel semiconductors, which the company hopes can be a model for business computing.    

While 4K TV offers few advantages now, in the future it may bring better color to the screen, and at least one TV brings that new color now.    

DreamWorks Animation will supply Netflix with a flood of new episodic TV programs inspired by characters from past DreamWorks franchises, which include “Shrek” and “The Croods.”    

LinkedIn’s Influencers program, which consists of people in leadership positions posting about their lives and careers, has transformed viewer engagement on the site, its chief executive said.    

After reports of technology companies cooperating with government surveillance efforts, Apple disclosed information about how it uses data from its online services.    

The social network said it received 9,000 to 10,000 requests for data from American law enforcement authorities in the second half of 2012.    

ESPN, the nation’s largest sports network and an early adopter of 3-D technology, said that it would discontinue its 3-D channel.    

The technology industry this week dispatched executives and entrepreneurs to buttonhole lawmakers and rallied people to mount a digital campaign on Congress.    

ESPN’s move spurred a debate about whether anyone would be left watching in 3-D television soon, and whether anything would be available worth watching.    

Privacy guardians in Europe want the ability to erase some online material, known as “the right to be forgotten,” but archivists and historians object.