http://en.wikipedia.org/w/index.php?title=Main_Page&printable=yes
That is what I found when I was looking for what Brian Vibber means in this
thread. It is not PDF; It is -//W3C//DTD XHTML 1.0 Transitional//EN . It
removes the most dynamic links I can think of, and those links do nothing on
paper, so that makes sense.