Facebook's '3.74 degrees of separation' is a world away from being significant | Matt Parker http://gu.com/p/33ted/tw via @guardian
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Facebook's '3.74 degrees of separation' is a world away from being significant | Matt Parker http://gu.com/p/33ted/tw via @guardian