Google Search Shortcuts-Google Cheat Sheet
Here are the top Google Shortcuts that any savvy Googler should have under his or her belt. You'll find that using these Google Search Shortcuts will greatly cut down on your Google search time, as well as make your Google searches more effective and more efficient.
Web Workshop
Goggle's page rank calculator.
Yahoo
another search engine
Ask
Search engine ask.co.uk
The world's most popular search engine