Search effectively in google

We spend most of our time online searching (googling in significant case),but still majority of the people lack the skills of using google effectively.Here are some tips given by google itself for effective search.

Google Effective Search Guide

It is interactive and also lists example for each entry. A must and easy to use quick guide for effective search.

In case you want to become master of google search, Google Inside Search will act like a encyclopedia.

P.S: I was planning to make a blog post series of effective search in google, but found out that google themselves has brought such a nice interactive simple guide from which one can learn everything :). Will cover other search engines soon.