What is it ?

Most of you are probably using www.google.com as your default search engine. And some of you might have already tried their famous Google Toolbar. This is a easy to use yet very powerful utility integrated into your Internet Explorer. It allows you to execute search queries without first going to Google's website.

Now, the second thing I'd like to explain is Wikipedia.org. It's sort of a open encyclopedia project, where everyone is invited to add or change any of the millions of articles. It's tremendous. Give it try.