Essential tips and tricks for Googler's of all kinds.
The link in the original article is dead.
This article at Geekology has similar (and I think better) tips than the original link. I think the formatting in this article is easier to read and understand as well.
(thanks to Anonymous for letting me know)
'This two page Google Cheat Sheet lists all Google services and tools as well as background information. The Cheat Sheet offers a great reference to grasp of basic to advance Google query building concepts and ideas.' You won't find this cheat sheet on Google, it was put together by the site owner for reference material.
The Cheat Sheet is a two page .pdf download.
Google Cheat Sheet