The following single-sheet reference page was created for ARG friends and coworkers–people that would like to contribute to editing a wiki, but who are a little overwhelmed by the formatting. It is a quick-reference of the commonly used markup styles–including links, lists, bold, italic, and others–that can be printed on a single page and left next to your computer. It is not intended to be a complete reference because there are plenty of those already available (including one on the MediaWiki site itself.)

http://netninja.org/files/wikisheet/wikisheet.pdf