I found a folder of 4chan board-tans on my computer.

2/20/12 — 9:01pm Short URL: http://tmblr.co/ZU7NPyGl-tyg Filed under: #4chan  #/d/  #/ck/  #/co/  #/a/  #/v/  #/x/  #/i/  #/c/  #/tg/  #/u/  #/s/  #board-tans