The socialnetworked worldpics Twitter and Flickr use in London New York and other cities mapped in lights

At first glance this image appears to show how light pollution blights Manhattan.

But this is no satellite photo from space. Instead, it is a map that reveals how keen New Yorkers are on social networking.
Created by Eric Fischer, the map combines data from the photo-sharing website Flickr and the micro-messaging network Twitter, which is notoriously favoured by celebrities.

Source:
http://www.dailymail.co.uk/sciencetech/article-2014748/The-social-networked-world--Twitter-Flickr-use-London-New-York-cities-mapped-lights.html