Search tip links: Don't just take my word for it!!
Here are pages that give you more tips on searching the web than you ever wanted to know!!
Alltheweb's tips Bright Planet's tips
Google's tips Refdesk (has some good info)
http://www.completeidiotsguides.com just search for "effective searching" it's a great book and I've enjoyed the first edition quite well.
Search Engine Watch
For those who are jealous of the people who know all of those keyboard shortcuts.
Some more happy little keyboard shortcuts to make your searching fast and fun.