Position	Website	Change	Thumbnail
1	pubs.acs.org - ACS Publications Home Page	1
2	lulu.com - Self Publishing and Book Printing Solutions - Books, EBooks, Photo books and Calendars at Lulu.com Lulu.com lets you make, self-publish, print and sell print-on-demand books, e-books, photo books and calendars with free book publishing.	1
3	nature.com - Nature Publishing Group : science journals, jobs, and information Nature - the world	4
4	worldcat.org - WorldCat.org: The World's Largest Library Catalog Find what you want in a library near you with WorldCat, a global catalog of library collections.	7
5	searchworks.stanford.edu - SearchWorks (SULAIR)	10
6	readcube.com - ReadCube | Free Reference Manager - Academic Software For Research Readcube is a free, simple, academic software and reference manager for researchers. Read Cube helps researchers organize, annotate and stay on top o...	-4
7	onlinelibrary.wiley.com - Wiley Online Library	-6
8	adsabs.harvard.edu - SAO/NASA ADS: ADS Home Page	0
9	abebooks.com - AbeBooks Official Site - New & Used Books, New & Used Textbooks, Rare & Out of Print Boo... AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive ...	-4
10	catalog.hathitrust.org - HathiTrust Home | www.hathitrust.org	0

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