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Access documents, images, and videos of NASA?s current and historical aerospace research and engineering results.
http://ntrs.nasa.gov/
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Catalog of the web run by a confederation of volunteers.
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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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Scirus is the most comprehensive science-specific search engine on the Internet. Driven by the latest search engine technology, Scirus searches millions ...
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Leading Social Science Research Delivered To Your DeskTop Daily. Social Science Research Network (SSRN) is devoted to the rapid worldwide dissemination of social ...
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More than 60 million articles from 3,500 credible publications - all in one place. Register for a free trial today with HighBeam Research, a premiere online library.
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Wolfram|Alpha gives you access to the world's facts, without searching. See what everyone is talking about.
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Provides access to scientific publications across disciplinary, institutional, ... About ScientificCommons Imprint Contact Register URL Help ...
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Scitopia.org is a free federated search tool for scholarly literature of various ... Scroll down until you see section labled 'Scripting' ...
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A librarian's choice of the best of the Web.
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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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