Google http://www.google.com
Yahoo http://www.yahoo.com
Ask http://www.ask.com
HotBot http://www.hotbot.com
AltaVista http://www.altavista.com
MSN Search http://www.msn.com
Dog Pile http://www.dogpile.com
Hidden Websites: Many educational websites are not recognized in general search engines. Directories and Portals are explained in this valuable site. http://www.robertlackie.com/invisible/index.html
Metacrawler http://www.metacrawler.com
Librarian's Internet Index http://www.lii.org/