We've outlined how search engines work and listed some strategies for getting the most out of them. But search engines are not the only tool you can use to find sites you don't already know about.
Please watch this brief (approx. 2:30) presentation that compares searching a Web search engine to searching a subject directory. This presentation has spoken narration. If you are unable to hear sound or would prefer to view a version with text captions instead of spoken narration, please view the alternate version.