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Yahoo study on social reactions to different news stories.

upcoming social network - collaboration tool for teachers

"With more than 500 million people now on Facebook, it's inevitable that you'll be friended by someone you know, but with whom you don't want to share your online life. Once you've accepted them as a friend, how do you avoid them without the awkwardness of unfriending them?"

"This paper explores key issues people experience managing personal boundaries within and across social technologies. We look in particular at email and online social networks. We offer a theoretical framework for understanding the errors in assumptions about the singularity of identity that are currently inscribed into the sharing models of social technology systems. Through a questionnaire study we examine how people facet their identities and their lives, and how these facets are expressed through use of technology. We found for more mature users family was an extremely important context for sharing online, and that email was still a preferred form of communication for private sharing across facets of life. Single, working men had the highest level of incompatible facets, and a higher level of facet incompatibility was correlated with increased worry about sharing in the context of social networks."

"Researchers at Yahoo analyzed tweets after the Chilean earthquake earlier this year and found evidence that the Twitter community works like a "collaborative filter," questioning reports that turn out to be fake and confirming those that are true."