ISI Web of Knowledge
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http://isiknowledge.com/
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Questia - The Online Library of Books and Journals
Subscription-based research service that provides access to liberal arts books and journals.
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ERIC - Education Resources Information Center
National information system providing users with ready access to an extensive body of education-related literature. Full-text articles and monographs can also be purchased online.
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Pubget: the search engine for life-science PDFs
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Questia Online Library - New Search
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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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Proceedings of the National Academy of Sciences
Multidisciplinary journal that covers the biological, physical, and social sciences, publishing research reports, commentaries, reviews, colloquium papers, and actions of the Academy.
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Scopus
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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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Librarians' Internet Index
Librarian selected and annotated index to the Internet, updated weekly.
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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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