Grolier Online
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http://go.grolier.com/
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CiteULike: A free online service to organise your academic papers
Citeulike SVN Server. To check out the source code: svn co http://svn.citeulike.org/svn citeulike ...
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BUBL home page
Subject trees arranged alphabetically and by UDC.
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AccessMyLibrary - News, Research, and Information that Libraries Trust
Free access to millions of articles from magazines on several subjects. Research and read millions of free news articles, magazine stories, and journal entries.
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Virtual Reference Shelf - Selected Web Resources (Library of Congress)
Ask a librarian: An online reference service from the Library of Congress that allows researchers to submit reference questions to Library of Congress reading rooms ...
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DeepDyve - Search for Research
DeepDyve is the largest online rental service for scientific, technical and medical research.
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Encyclopedia of Earth
Poul Johansen has long experience as project manager and coordinator of large ... He is a Senior Research Scientist at the National Environmental Research ...
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Wikipedia
Wikipedia is a free, open content, community-built encyclopedia with thousands of articles on topics from A to Z. Available in dozens of languages.
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LoveToKnow 1911
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PubMed Home
PubMed is a service of the U.S. National Library of Medicine that includes over 19 million citations from MEDLINE and other life science journals for biomedical ...
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OAIster | Home
This site reaches fewer than 2000 U.S. monthly people. ... oaister.org. Site Not Quantified. Data is based on Rough Estimate. Sparse Data ...
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