Social networks: The great tipping point test
by Mark Buchanan -
EVERY move you make, every twitter feed you update, somebody is watching you. You may not think twice about it, but if you use a social networking site, a cellphone or the internet regularly, you are leaving behind a clear digital trail that describes your behaviour, travel patterns, likes and dislikes, divulges who your friends are and reveals your mood and your opinions. In short, it tells the world an awful lot about you.