Phil Bradley has a wonderful guide to how to find what you are looking for on the web when putting a simple search into Google just will not do. For example:
For Factual Answers: Go to Microsoft Encarta
To Search 23 engines simultaneously, use TurboScout
To look at recent additions to search engines, use GooFresh
For academic resources, use Google Scholar
To search the hidden web pages, use Turbo 10
Need sounds, try FindSounds
Want people’s opinions? Use Technorati
