There's also a blog post at http://blog.hatnote.com/post/49342528753/wikipedia-recent-changes-map http://blog.hatnote.com/post/49342528753/wikipedia-recent-ch..

There's also a blog post at http://blog.hatnote.com/post/49342528753/wikipedia-recent-changes-map http://blog.hatnote.com/post/49342528753/wikipedia-recent-ch... that provides a little bit of background.