Map of Britain Based on Telephone Calls

Story previously submitted:

http://news.ycombinator.com/item?id=1988110 - 4 days ago

http://news.ycombinator.com/item?id=2001426 - 1 day ago

Also, from http://ycombinator.com/newsguidelines.html

  > Please submit the original source. If a blog post
  > reports on something they found on another site,
  > submit the latter.

Here's the original:

http://www.plosone.org/article/info:doi/10.1371/journal.pone...

Blogspam. Original article: http://www.plosone.org/article/info:doi/10.1371/journal.pone...