This was first posted in r/dataisbeautiful. The author writes a post-mortem of its virality:<p><a href="http://www.reddit.com/r/dataisbeautiful/comments/259x4c/hey_rdataisbeautiful_im_the_guy_who_made_all/" rel="nofollow">http://www.reddit.com/r/dataisbeautiful/comments/259x4c/hey_...</a>