Stories by Zach Miners

How many eyes see a tweet about television? Nielsen wants to find out, and let marketers know so they can make more informed advertising decisions on Twitter.

Ads are coming to Instagram in the next couple of months, the photo- and video-sharing app maker said Thursday.

Twitter has fewer users and less revenue than Facebook, but in mobile advertising Twitter appears to have dodged the problems that dragged down Facebook's stock after its public offering last year.

Twitter has filed for its long-awaited initial public offering, revealing a fast-growing company but one that lost money in each of the past three years.

More hotels, shops and other businesses will soon be offering free Wi-Fi to customers if they agree in return to "check-in" at the business from their Facebook account.

Google has acquired Flutter, a gesture recognition company whose technology lets people control music and movies on their desktop by waving their hands.

Facebook has started to include more types of content in Graph Search, a tool for searching what others have been posting about on the social network

Google faces financial sanctions in France after failing to comply with an order to alter how it stores and shares user data to conform to the nation's privacy laws.

Facebook wants to make its ads less annoying to users by only showing them what they want to see, even if it means a dip in ad exposure for some marketers.

Google is now 15 years old, and the company is celebrating by smartening up its bread-and-butter technology, search, and adding new features such as comparisons and filters.

The days of shrugging off Twitter may soon be over. Some 200 million users strong, the site is already one of the most prominent social networks, but going public could give it the muscle to become the next Facebook or Apple, one analyst said.

Twitter announced -- on Twitter, of course -- that the company has filed with the U.S. Securities and Exchange Commission for an initial public offering.

Twitter has acquired MoPub, a mobile-focused advertising exchange that could help the social network grow its ad business as more users move away from the desktop.

Yahoo's logo is now a little bit sleeker, under a redesign unveiled Wednesday in keeping with the company's reinvention efforts.

Searching through Twitter's archive of tweets can be frustrating -- they are sorted on the site by Twitter's own algorithms, and older tweets tend to get buried. Google? Forget it. Topsy, an analytics company, wants to do it better.