Open Site Encyclopedia  - http://open-site.org/

The Open Site Encyclopedia Project aims to be the most comprehensive, informational, volunteer-powered web-site on the Internet.Its purpose is to create, into an organized structure, content of different types, from different topics, and to share it back to the Internet community. They aim to be comprehensive and to reflect the depth of human knowledge in different topics and areas. Open Site offers both definitions on words and encyclopedic articles on topics.

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Encyclopedia  - http://www.encyclopedia.com/

Encyclopedia the Internet's premiere free encyclopedia, provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition. Each article is enhanced with links to newspaper and magazine articles as well as pictures and maps - all provided by HighBeam Research.

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How Stuff Works  - http://www.howstuffworks.com/

How Stuff Works is an online publishing company widely recognized as a leading source for clear, unbiased, reliable explanations of how everything actually works. With thousands of articles, content features and illustrations populating ten different content channels , How Stuff Works attracts millions of unique visitors each month. How Stuff Works has exclusive online rights to the vast PIL product library of over 10,000 books and 1 million images, and all future content.

Address: One Capital City Plaza , 3350 Peachtree Road, Suite 1500.   City: Atlanta   State: Georgia

KEGG  - http://www.genome.ad.jp/kegg/

Kyoto Encyclopedia of Genes and Genomes (KEGG) is a suite of databases and associated software, integrating our current knowledge on the function and utility of biological systems, the information about the universe of genes and proteins and the information about the universe of chemical compounds and reactions.

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Symbols  - http://www.symbols.com/

Symbols -- Encyclopedia of Western Signs and Ideograms contains approximately 2,500 Western signs. A unique system for classifying signs according to graphic structure lets the reader look up the meaning of any sign in seconds. A comprehensive Word Index and a large number of cross-references throughout the book make it equally easy to find signs that are related to each other.

Address: Orrstigen 6 , SE-181 56 Lidingö.   City:    State: SE-181 56 Lidingö

Internet Encyclopedia of Philosophy  - http://www.iep.utm.edu/

The Internet Encyclopedia of Philosophy (IEP) is a non-profit organization run by the editors. The Encyclopedia receives no funding, and operates through the volunteer work of the editors, authors, and technical advisors. The Internet Encyclopedia of Philosophy are original contributions by specialized philosophers around the Internet; these are identifiable by the author's name at the foot of the article.

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World Book  - http://www.worldbook.com/

World Book has set the standard for providing accuracy, objectivity, and reliability in research materials for both children and adults. World Book has been committed to publishing encyclopedias and other reference products that meet the highest standards of editorial excellence while keeping pace with the technological developments that define the computer age. This commitment has culminated in the publication of the number-one selling print encyclopedia in the world, The World Book Encyclopedi

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Planet Math  - http://planetmath.org/

Planet Math is a virtual community which aims to help make mathematical knowledge more accessible. Planet Math content is created collaboratively, the main feature is the mathematics encyclopedia with entries written and reviewed by members. Planet Math entries are written in LaTeX, the lingua franca of the worldwide mathematics community. All of the entries are automatically cross-referenced with each other, and the entire corpus is kept updated in real-time.

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Probert Encyclopaedia  - http://www.probert-encyclopaedia.co.uk/

The Probert Encyclopaedia is a truly independent reference encyclopaedia covering all aspects of human knowledge. Because they only use independent researchers, not sponsored by industry, corporations, governments or advertisers, their data is reliable and unbiased - unlike many other encyclopaedias.

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Visual Dictionary and encyclopedia  - http://www.infovisual.info/

Visual Dictionary, to learn by way of image with thematic, clear and precise pages, with concise and rigorous texts, bilingual, the InfoVisual will become a academic resource. Different from an encyclopedia or from a traditional online dictionaries, thesauri and glossaries because the images replace the words. A teaching website of reference which will be able to find an essential place as a good link on your site.

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