Geosocial Universe

A lot of people have blogged or tweeted Jess3's graphics of the Geosocial Universe.So here I am blogging them as well, though one question is where they got the data from. It also made me think how I only have one Facebook and one Twitter account, but I have several each of Gmail and Yahoo email accounts, so perhaps the email numbers are even less likely than some of the other services to have a direct relationship with the number of individual users? Below is an embed of the graphic on Slideshare (drawn in different ways, their business is data visualisation).