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PLoS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

Academia.edu helps academics follow the latest research.

InTechOpen offers thousands of peer-reviewed free Open Access academic and scholarly articles and research papers. InTechOpen is part of InTech - Open Access Publisher...

Pubget is like Pubmed, except you get the PDFs right away

Readcube is a free, simple, academic software and reference manager for researchers. Read Cube helps researchers organize, annotate and stay on top of new research literature.

Automatic works cited and bibliography formatting for MLA, APA and Chicago/Turabian citation styles. Now supports 7th edition of MLA.

Science.gov is a gateway to government science information provided by U.S. Government science agencies, including research and development results.

Zotero is a powerful, easy-to-use research tool that helps you gather, organize, and analyze sources and then share the results of your research.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

WorldWideScience.org is a global science gateway