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Howstuffworks Question Library
The index to over 400 fantastic 'How Stuff Works’ articles!
Science Line - ask a question
A free science information service, staffed by scientists who are expert in explaining complex topics in everyday language.
cience Questions and Answers: Ask the Experts at Scientific American Magazine
Science questions and science expert answers in chemistry, physics, astronomy, mathematics, computers, environment, geology, medicine.
Learn how Everything Works!
Articles explain how hundreds of things work, from elements of the human body to space-age technology.
Answers.com - Online Dictionary, Encyclopedia and much more
An ad-supported reference search service, which displays concise answers drawn from over 100 encyclopedias, dictionaries, glossaries and atlases.
Dr Weil
DrWeil.com is the leading online resource for healthy living based on an integrative medicine philosophy.
Help.com
Help documentation for computer hardware, software and applications. Questions and answers in a Bulletin Board format.
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