Tehran blocks access to Facebook

Iran has blocked access to social networking site Facebook ahead of June’s presidential elections, Iran’s Ilna news agency and web users say.

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Probe into teacher Twitter posts

A Scottish teacher who posted messages discussing her pupils on a social networking website is being investigated by her employers.

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Websites ‘keeping deleted photos’

User photographs can still be found on many social networking sites even after people have deleted them, Cambridge University researchers have said.

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Google Announces Open Social

Details emerged today on Google’s broad social networking ambitions. The new project, called OpenSocial, is a set of common APIs that application developers can use to create applications that work on any social networks (called “hosts”) that choose to participate. More from Techcrunch.