SCIENTIFIC SEARCH ENGINES AND JOURNAL PORTALS

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1.Scirus	Scirus is a web portal for scientists by Elsevier. Most comprehensive science-specific search engineon the internet.	http://www.scirus.com/
2.Community of Science	Community of science is the leading site for global R&D community.	http://login.cos.com/
3.DOE Information Bridge	The DOE Information Bridge provides free and convenient access to full-text and bibliographic records of the Department of Energy's(DOE)research and development reports.	http://www.osti.gov/bridge/
4.HighWire Press	Highwire press is a division of the stanford university libraries,which produces the online version of high-impact,peer-reviewed journals and other scholarly content.	http://highwire.stanford.edu/lists/freeart.dtl
5.Ingenta	Ingentaconnect from Publishing Technology distributes your content to over 25 million individual users a month. An all-inclusive and cost-effective package. ingentaconnect gives you access to the largest linking network of its kind online.	http://www.ingentaconnect.com/
6.PubMed	PubMed comprises over 22 million citations for biomedical literature from MEDLINE, life science journals, and online books. PubMed citations and abstracts include the fields of biomedicine and health, covering portions of the life sciences, behavioral sciences, chemical sciences, and bioengineering. PubMed also provides access to additional relevant web sites and links to the other NCBI molecular biology resources.	http://www.ncbi.nlm.nih.gov/books/NBK3827/#pubmedhelp.How_to_Get_the_Journ
7.MEDLINE	MEDLINE® contains journal citations and abstracts for biomedical literature from around the world.  PubMed® provides free access to MEDLINE and links to full text articles when possible.	http://www.nlm.nih.gov/bsd/pmresources.html

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8.Science.gov	Science.gov searches over 55 databases and over 2100 selected websites from 13 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results. Science.gov is governed by the interagency Science.gov Alliance	http://www.science.gov/
9.ScienceDirect	ScienceDirect is a leading full-text scientific database offering journal articles and book chapters from more than 2,500 peer-reviewed journals and more than 11,000 books.	http://www.sciencedirect.com/
10.Scopus	Scopus, officially named SciVerse Scopus, is a bibliographic database containing abstracts and citations for academic journal articles.	http://www.scopus.com/home.url