Wikipedia.org
The biggest multilingual free-content encyclopedia on the Internet. Wikipedia is written collaboratively by volunteers; its articles can be edited by anyone with access to the web site.
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Encyclopedia
Encyclopedia.com
Search their free online library – with reference works like Oxford Dictionaries, Britannica Concise Encyclopedia and millions of newspaper and magazine articles.
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HowStuffWorks.com
Explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations.
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Reference.com
Search reference material for free. Includes dictionaries, encyclopedias, almanacs, atlases, legal resources, science, health, computers and various other reference resources.
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ExpertVillage.com
How-to videos covering a vast range of topics and categories. Videos have been submitted by over 1,800 individuals, with their professional experience and expertise noted in their profiles.
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About.com
Whether it be decorating ideas, headaches, recipes, movie trailers, or car buying tips, their Guides offer practical advice and solutions for every day life. Useful for finding "How To" advice.
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Encarta.msn.com
Contains sections for encyclopedia, dictionary, thesaurus, world atlas, education and other information. To get the full experience you will need to subscribe to one of their products.
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GuinnessRecords.com
Not as extensive as the actual Guiness Book of World Records, it still has a comprehensive list of world records - ranging from the fastest 100m sprint to the longest scarf knitted whilst running a marathon.
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