The MediaWiki reference card is a one page summary of important MediaWiki editing commands, intended to be printed out and used next to the computer. It was originally created by MichaelJanich, starting from a similar reference card for TeX. This file has been updated to properly display fonts on screen.
To view and print the reference card, you need a recent PDF viewer. The card can be downloaded in PDF format from here: Wiki-refcard download page. A free Word document to MediaWiki format converter can be downloaded from Word2MediaWiki. The URL in the reference card to this converter is not correct as of 6 Nov 2007.
Please feel free to improve the reference card by editing the TeX source code; if you do, you may want to update the version number and upload a new PDF version, since not all users have access to TeX.
See also the poster sized cheatsheet.