A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Num All Free

AGU Books
AGU publishes books that are relevant to working scientists, to AGU members, and to the larger Earth and space science community. Geophysical Monographs and Special Publications can be field-specific, a broader view of work, or focus on conference proceedings.
AGU Journals
AGU peer-reviewed journals span a wide range of subjects in the Earth and space sciences. Three journals, Geophysical Research Letters, Reviews in Geophysics, and AGU’s newest open access journal, Earth and Space Science, cover the entire field of Earth, planetary, and space sciences. Earth’s Future, an open access journal, also covers interactions with the social sciences and ecology. All journals have open access options and Earth’s Future, Earth and Space Science, and JAMES are fully open access.
AIP Publishing
One of the world’s largest publishers of scientific information in physics and the related sciences, AIP Publishing employs innovative technologies and offers publishing services for the American Institute of Physics and AIP Member Society publishing partners. AIP Publishing’s suite of publications includes 17 journals, three of which are published in partnership with other organizations; magazines, including AIP’s flagship publication Physics Today; and the AIP Conference Proceedings series.
APS Journals
APS publishes 11 leading international physics research journals, including the Physical Review Letters, Physical Review, Reviews of Modern Physics, and three open access journals.
ASM Journals
American Society for Microbiology journals are the most prominent publications in the field, delivering up-to-date and authoritative coverage of both basic and clinical microbiology.
Chemspider
ChemSpider is a free chemical structure database providing fast access to over 57 million structures, properties, and associated information. By integrating and linking compounds from ~500 data sources, ChemSpider enables researchers to discover the most comprehensive view of freely available chemical data from a single online search. It is owned by the Royal Society of Chemistry.
Elservier e-books
ScienceDirect provides easy, instant, DRM-free access to searchable books, offering award-winning content and comprehensive coverage of Environmental Science and Materials Science, including those published under the renowned Academic Press, Woodhead Publishing, and Gulf Professional Publishing
IEEE Xplore
The IEEE Xplore digital library is a powerful resource for discovery and access to scientific and technical content published by the IEEE  and its publishing partners. IEEE Xplore provides Web access to more than 3-million full-text documents from some of the world's most highly cited publications in electrical engineering, computer science and electronics.
IET Hub Home
The IET journals portfolio includes over 40 journals, covering a wide range of engineering and technology fields. As well as publishing current research Open Access, all articles published from 2013 are now freely available, making a vast body of published research widely accessible
IoP Science
IOPscience is an online service for journal content published by Institute of Physics Publishing. IOPscience embraces innovative technologies to make it easier for researchers to access scientific, technical and medical content. 
iThenticate
iThenticate is the premier tool for researchers and professional writers to check their original works for potential plagiarism. With an easy to use submission process that checks for similarity against the world’s top published works, researchers and institutions can feel confident that their academic reputation will be protected. - Solicita tu cuenta en Biblioteca
Journal Citation Reports
Journal Citation Reports offers a systematic, objective means to critically evaluate the world's leading journals, with quantifiable, statistical information based on citation data. By compiling articles' cited references, JCR helps to measure research influence and impact at the journal and category levels, and shows the relationship between citing and cited journals.
Mendeley (Grupo Institucional)
Mendeley is a free reference manager and academic social network. Make your own fully-searchable library in seconds, cite as you write, and read and annotate your PDFs on any device.
Nature
Nature is a weekly international journal publishing the finest peer-reviewed research in all fields of science and technology on the basis of its originality, importance, interdisciplinary interest, timeliness, accessibility, elegance and surprising conclusions. Nature also provides rapid, authoritative, insightful and arresting news and interpretation of topical and coming trends affecting science, scientists and the wider public.
Nature Biotechnology
Nature Biotechnology is interested in the best research from across the field of Biotechnology; our broad scope ensures that work published reaches the widest possible audience. All editorial decisions are made by a team of full-time professional editors.
Nature Climate Change
Nature Climate Change is a monthly journal dedicated to publishing the most significant and cutting-edge research on the nature, underlying causes, or impacts of global climate change and its implications for the economy, policy, and the world at large. All editorial decisions are made by a team of full-time professional editors.
Nature Ecology & Evolution
Launched in January 2017, Nature Ecology & Evolution is an online-only journal, publishing the best research from across ecology and evolutionary biology monthly. All editorial decisions are made by a team of full-time professional editors.
Nature Geoscience
Nature Geoscience is a monthly journal dedicated to top-quality Earth sciences research from all disciplines within the geosciences. All editorial decisions are made by a team of full-time professional editors.
Nature Materials
Nature Materials is a monthly journal publishing the best research from all areas of materials science and engineering. All editorial decisions are made by a team of full-time professional editors.
Nature Medicine
Nature Medicine is a monthly journal publishing original peer-reviewed research in all areas of medicine on the basis of its originality, timeliness, interdisciplinary interest, and impact on improving human health. Nature Medicine also publishes commissioned content, including News, Reviews, and Perspectives, aimed at contextualizing the latest advances in translational and clinical research to reach a wide audience of M.D. and Ph.D. readers. All editorial decisions are made by a team of full-time professional editors.
Nature Methods
Nature Methods is a monthly journal publishing novel methods and significant improvements to basic life sciences research techniques. All editorial decisions are made by a team of full-time professional editors.
Nature Microbiology
Nature Microbiology is an online-only, monthly journal publishing the best research from across the field of microbiology. All editorial decisions are made by a team of full-time professional editors.
Nature Nanotechnology
Nature Nanotechnology is a monthly journal publishing the best research from across nanoscience and nanotechnology. All editorial decisions are made by a team of full-time professional editors.
Nature Photonics
Nature Photonics is a monthly journal publishing the best research from all areas of light generation, manipulation and detection. All editorial decisions are made by a team of full-time professional editors.
Nature Physics
Nature Physics is a monthly journal publishing the highest-quality research in all areas of physics, pure and applied. All editorial decisions are made by a team of full-time professional editors.
Nature Plants
Nature Plants is an online-only, monthly journal publishing the best research on plants — from their evolution, development, metabolism and environmental interactions to their societal significance. All editorial decisions are made by a team of full-time professional editors.
Nature Protocols
Nature Protocols publishes secondary research articles - predominantly Protocols (including Protocol Updates and Protocol Extensions), but also techniques-related Reviews, Perspectives, Correspondences, Matters Arising, Commentaries, and Consensus Statements - all of which are based on published primary research papers. We cover new techniques and technologies, as well as established methods, used in all fields of the biological, chemical and clinical sciences (see aims and scope for more info). Articles are commissioned by the editors or suggested by authors as Presubmission Enquiries.
Nature Reviews Genetics
Nature Reviews Genetics aims to be the premier source of reviews and commentaries for the scientific communities we serve. We strive to publish articles that are authoritative, accessible and enhanced with clearly understandable figures, tables and other display items. We want to provide an unparalleled service to authors, referees and readers, and we work hard to maximize the usefulness and impact of each article. 
Nature Reviews Microbiology
Nature Reviews Microbiology aims to be the premier source of reviews and commentaries for the scientific communities we serve. We strive to publish articles that are authoritative, accessible and enhanced with clearly understandable figures, tables and other display items. We want to provide an unparalleled service to authors, referees and readers, and we work hard to maximize the usefulness and impact of each article.
ORCID
ORCID provides a persistent digital identifier that distinguishes you from every other researcher and, through integration in key research workflows such as manuscript and grant submission, supports automated linkages between you and your professional activities ensuring that your work is recognized.
Oxford Journals - Acceso de 1996 - 2015
Oxford University Press (OUP) publishes the highest quality journals and delivers this research to the widest possible audience. We achieve this by working closely with our society partners, authors, and subscribers in order to provide them with publishing services that support their research needs.
Science Magazine
Science has been at the center of important scientific discovery since its founding in 1880—with seed money from Thomas Edison. Today, Science continues to publish the very best in research across the sciences, with articles that consistently rank among the most cited in the world. In the last half century alone, Science published:

- The entire human genome for the first time.
- Never-before seen images of the Martian surface.
- The first studies tying AIDS to human immunodeficiency virus.
ScienceDirect - Freedom Collection
Electronic-only access to Elsevier's Journals with access to the current and four previous years of content plus additional content annually
Scopus
Scopus is the largest abstract and citation database of peer-reviewed literature: scientific journals, books and conference proceedings. Delivering a comprehensive overview of the world's research output in the fields of science, technology, medicine, social sciences, and arts and humanities, Scopus features smart tools to track, analyze and visualize research.
Springer Protocols
SpringerProtocols is the largest subscription-based online database of reproducible laboratory protocols in the biomedical and life sciences. Compiling protocols from the book series Methods in Molecular Biology and other sources, SpringerProtocols offers researchers access to nearly thirty years of tested, trusted, step-by-step protocols for immediate use in the lab.
SpringerLink
The Springer journal collection includes more than 2.500 English-language and close to 200 German-language journals.
The Royal Society Journals
Provides researchers, administrators, faculty, and students with quick, powerful access to the world's leading citation databases. Authoritative, multidisciplinary content covers over 12,000 of the highest impact journals worldwide.
Web of Science
Provides researchers, administrators, faculty, and students with quick, powerful access to the world's leading citation databases. Authoritative, multidisciplinary content covers over 12,000 of the highest impact journals worldwide.
Wiley Online Library
Wiley Online Library hosts the world's broadest and deepest multidisciplinary collection of online resources covering life, health and physical sciences, social science, and the humanities. It delivers seamless integrated access to over 6 million articles from over 1500 journals.
Search Databases