Facebook makes sharing more selective

Facebook on Tuesday announced it is rolling out improvements aimed at letting users be more selective about who gets to see what they post at the world's largest online social network.

In an emergency, word spreads fast and far

(PhysOrg.com) -- Large-scale emergencies, such as bombings and plane crashes, trigger a sharp spike in the number of phone calls and text messages sent by eyewitnesses in the vicinity of the disaster, according to a research ...

Politicians using Twitter in growing numbers

John McCain took to the Senate floor Monday and talked about twittering. For the increasingly popular networking tool, it was either a moment that marked the technology's full-bore entry into the cultural mainstream -- or ...

Researchers create tool for monitoring brands on Twitter

Universidad Carlos III de Madrid has developed a monitoring tool with which brands can test the effects of their strategies on social networks. This program can control millions of 'tweets' and reveal the strengths and weaknesses ...

Is YouTube a driver for social movements like Occupy Wall Street?

Social media such as YouTube videos provide a popular and flexible venue for online activism. How two different social protest movements—Occupy Wall Street and the Proposition 8 same sex marriage initiative—utilized YouTube, ...

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