Google and Yahoo Cheat Sheets
(Web Search, About.com)
"Have you really, really gotten the most you can out of Google and Yahoo lately? What I mean is - have you dug under the surface of these seemingly simplistic search engines and really taken them out for a test drive?
Here's something to help you out - check out the Google Cheat Sheet and the Yahoo Cheat Sheet. Both are in printable format so you can tape them up to the side of your monitor for easy access."