Facebook appears to have competition for teens' attention, and they're drifting to other social-media sites as evidence mounts that the growth of the world's largest social network is slowing.
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.
US President Barack Obama added popular microblogging platform Tumblr on Monday to the Internet arsenal for his 2012 re-election campaign.
Yahoo CEO Marissa Mayer says the Internet company now has about 800 million worldwide users, a 20 percent increase since she was lured away from Google 15 months ago to steer a turnaround.
The White House added Instagram to its social media portfolio on Wednesday, as it posted a picture of a helicopter with President Barack Obama and his family taking off on a trip to Africa.
To be successful and to keep users coming back for more so-called microblogging services, of which Twitter is probably the most well known have to be useful, easy to use and be enjoyable otherwise new users will abandon the ...
Google+, the Internet search giant's rival to Facebook, has a high-profile new member: US President Barack Obama.
A US sex publisher which fought a long copyright battle with Google has sued the Tumblr social networking site claiming "rampant" illegal use of its photographs, court documents showed.
Two years into her reign as Yahoo's chief executive officer, Marissa Mayer is sitting on a mountain of cash from the Alibaba IPO even as she faces an investor revolt that could derail her long-range plans for the Sunnyvale, ...
Actress Elizabeth Banks, singer Jordin Sparks and Vice President Joe Biden are among those helping Tumblr establish a safe place from bullies online.