Visualizing Friendships - Facebook Worldmap

This is a very beautiful image created - base on the friendships among all Facebook users.

Paul Bulter, an intern working in Facebook, has used the data of 500 million people regarding their social relationship to construct an image of the world.

Copyright Paul Bulter/Facebook.

The image of Facebook Worldmap is generated using the R Project for statistical computing, he inputted all the coordinate of the cities and generate base on the data in the repository.  The image is also visualizing the user base of Facebook in the world.

A pretty good looking image that you can know the majority of Facebook users located...

The original thread by the author:
http://www.facebook.com/note.php?note_id=469716398919.ksh/sg

Charles