4 Teachers - A carefully indexed collection of online resources made by teachers for teachers!
Ask Jeeves - Easy to use, student-safe method of web searching. All directories are conceptual, AJ handles semantics and syntax by accepting queries as complete questions, taking conceptual searches to a whole new level. If you are more verbal than logical, AJ may be what you're looking for.
Beaucoup - 2500+ engines and directories in categories. Lists available search engines by categories - very helpful if you're looking for something new and different aside from the mainstream searches.
Dogpile - The meta-search engine with the offbeat image, Dogpile takes your query and processes it through Yahoo!, Thunderstone, Lycos' A2Z, GoTo.com, Mining Co., Excite Guide, PlanetSearch, What U Seek, Magellan, Lycos, WebCrawler, InfoSeek, Excite and AltaVista all at once, adjusting to the peculiarities of each for you. You can also look for newsgroups, stock quotes, yellow pages, FTP sites, weather and maps.
INFOMINE - Scholarly internet resource collections, helpful in searching the invisible web.
Kids Click! - If you are comfortable with the thought of a librarian directing you towards the best resources (and who isn't?), this is a great site for locating kid's resources. This directory is built by librarians and narrows down the content to that which is truly kid-appropriate - created and maintained by the Ramapo Catskill Library System.
Niles Online - Robert Niles' site offering ideas on how to successfully find what you're looking for on the largest single information source known to mankind - the Web.
Open Directory - Formerly "New Hoo," this 'self-regulating republic' asks netizens to volunteer as editors to recommend the corners of the Web they know best, making for a non-commercial, populist directory where democracy runs amuck! If you want to see the input of the common man rather than polished experts, this site will definitely give you a new perspective.
Recommended Search Strategies - A tutorial from UC Berkeley which provides strategies and information to help you find information and also focus your searches on the World Wide Web.
Search Engine Watch - Search engine guides, status reports, facts, resources and a mailing list to keep you up-to-date on what's new, what works, and why.
Where to Find Things - Find out how to search the Internet.