- Altavista: A powerful search engine with an excellent Advanced Search Option. Good for complex searches.
- Yahoo: A powerful and intuitive directory. Edited by experts.
- C-4: A helpful and simple search engine. Ask C-4 "What is ______?"
- Webcrawler: A simple and easy to use search engine.Good for simple searches.
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Exite: More powerful than Webcrawler.
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Yupi: Search for things in Spanish or just in Colombia
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SOULIS' MetaSearch Engine: Allows you to use simultaneously thirteen powerful search engines (AltaVista, Infoseek, WebCrawler, Thunderstone, Excite, Google, FindWhat, Lycos, LookSmart, GoTo, About.com, DirectHit, and RealNames).
- Cambridge Dictionaries Online:International Dictionary of English, International Dictionary of American English, International Dictionary of Idioms, International Dictionary of Phrasal Verbs. Try the learner's dictionary first.
- Merriam-Webster Online: Dictionary, Thesaurus, Word of the Day, Word Games, Word for the Wise.
- OneLook Dictionaries: Search 589 Dictionaries Simultaneously
- Encyclopaedia Britannica
- Encyclopedia.com
- Stanford Encyclopedia of Philosophy
- The Encyclopedia Mythica An encyclopedia on mythology, folklore and legend.
- E-Conflict World Encyclopedia Country information from around the world. World Countries, Current Weather, Country Flags, National Anthems and Online Discussion.
- Word Search Search Many Dictionaries, Encyclopedias & Thesauri Simultaneously
- Search on the Columbia Encyclopedia in Bartleby.com Great Books On Line. Also access to Encyclopedias, Dictionaries, Thesaurus, Quotations and English usage.
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Project Gutenberg: Download Thousands of Books Online
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Non-Errors: Those usages people keep telling you are wrong but which are actually standard in English.
- A Spelling Test: 50 commonly misspelled words. You can take the test and see how you did right away. There are some spelling tips on another page...
1st International Collection of Tongue Twisters
The Vatican Homepage (with information about its secret library)
Universal Currency Converter (How much is 250 dollars in pesos, today?)