Update to big Emacs reference card
I transform the Wiki markup from a simple text markup using some "quick and dirty" Emacs Lisp. Besides being easier to work on than Wiki markup, the source format is also printable. The HTML version is almost 60 pages. Using a2ps on the text format it prints on 15 pieces of paper.
It's a lot of work, but it's a good way for me to learn more about Emacs. Hopefully, others will find it useful, too. I suggest printing only a few sections that you would like to improve on.
Since it is released under a bunch of free licenses, including version 2 or later of the GNU GPL and version 1.2 or later of the GNU FDL, people are free to share and modify it.