Journals
Journal of Medical Internet Research [Comprehensive open access resource for evidence based digital health and health care technology]
Emerging Infectious Diseases [An Open Access, peer reviewed journal published monthly by the Centers for Disease Control and Prevention, promotes the recognition of new and re-emerging infectious diseases around the world and improves the understanding of factors involved in disease emergence, prevention, and elimination]
Book Sources
Doctor’s Corner [An online directory of medical textbooks, medical procedures and doctor jobs for medical professionals and students]
E-Books Directory [freely accessible e-books, documents and lecture notes found all over the internet]
FreeBooks4Doctors [An Open Science initiative [book version] committed to providing unrestricted access to scientific knowledge – the new standard in medical publishing – which is envisaged to have a major impact on medical practice in the next few years]
FreeBookCentre [Multidisciplinary portal providing access to free books in all technical medical and scientific fields]
DOAB (Directory of Open Access Books) [Open Access academic peer-reviewed books from hundreds of publishers in all disciplines]
FreeTechBooks [Database of free / open access online computer science books, textbooks, and lecture notes]
Open Textbook Library [Openly-licensed books in a variety of disciplines including the natural sciences and medicine]
Hesperian Health Guides [A non-profit health information and health education source orientated toward primary health care and available in multiple languages. Free PDFs of selected books can be downloaded by the chapters through the Hesperian Digital Commons platform]
NCBI Bookshelf [A PubMed-like interface to access free books and documents in life science and healthcare. PDFs can be downloaded by the chapters via the DOI]
OpenMind [A non-profit project run by BBVA that aims to contribute to the generation and dissemination of knowledge about fundamental issues of our time, in an open and free way by analysing the impact of scientific and technological advances on the future of the economy, society and our daily lives]
Health Information Portals & Gateways
EnLINK (Nestlé Foundation) [Register free to access the full text of selected journals and books in human nutrition and health, made possible by a collaboration among the Nestlé Foundation, Ovid Technologies and a few publishers]
Ghana-University of Michigan Collaboration [Free and Open Access information sources in biomedicine, evidence-based medicine, epidemiology and more]
Merck Manuals [Evidence-based medicine; covers health information resources in all fields of medicine and available for medical professionals, as well as patients]
Knowledge SUCCESS [Knowledge Strengthening Use, Capacity, Collaboration, Exchange, Synthesis, and Sharing continues the USAID’s project on strengthening capacity and promoting access and use of family planning and reproductive health knowledge which was previously implemented under K4Health and resulted in the Popline gateway.
MedlinePlus [A free service of the National Library of Medicine (NLM), the world's largest medical library, presenting high-quality, relevant health and wellness information that is trusted, easy to understand, and free of advertising, in both English and Spanish]
WebMD [Health information services website; publishes content regarding health and health care topics, including a symptom checklist, pharmacy information, drugs information, blogs of physicians with specific topics, and providing a place to store personal medical information]
Medscape [A web resource for physicians and health professionals. It features peer-reviewed original medical journal articles, CME (Continuing Medical Education), a customized version of the National Library of Medicine's MEDLINE database, daily medical news, major conference coverage, and drug information—including a drug database (Medscape Drug Reference, or MDR) and drug interaction checker]
Free Medical Journals [An Open Science initiative [journal version] committed to providing unrestricted access to scientific knowledge – the new standard in medical publishing – which is envisaged to have a major impact on medical practice in the next few years]
LinksMedicus [Free medical education resources; a comprehensive listing of open access journal, books and databases for article-level searching covering all medical disciplines]
Healthline [A destination site for health and wellness information; special features include Symptom Checker, Find a Doctor, Pill Identifier and Health Topics; similar to WebMD]
Global Index Medicus [Access to information and scientific evidence on health, particularly in developing regions; an international platform and virtual space for collection, organization, dissemination and access to reliable health sciences information sources and for sharing and networking between communities in different languages and formats – a WHO initiative]
DOAJ (Directory of Open Access Journals) [A community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals]
HireWire [journals offering free online access to developing economies, based on programmes such as Research4Life, or on a HighWire-based program offering access to countries appearing in the World Bank's list of low-income economies]
Global Help [A free, online medical library with a primary focus on children’s health in underserved communities]
Health Affairs [Health Affairs focuses on the serious exploration of domestic and global health policy. Topic areas feature the full range of Health Affairs' content - including journal, blog, briefs, and more]
Wiley Open [A collection of resources on the new scholarly paradigm (open research) and Open Access journals and publishing services by Wiley]
Global Health Delivery Online [An interdisciplinary collaboration between Harvard Business School, Harvard Medical School, and Brigham and Women’s Hospital, which investigates the management decisions behind disease treatment and prevention globally. These lessons are disseminated through multiple channels, including online professional communities, case studies, educational programs, and scholarly publications]
HIFA (Healthcare Information For All) [A global health network of more than 16,000 members (health workers, librarians, publishers, researchers, policymakers, etc.) committed to the progressive realisation of a world where every person has access to the healthcare information they need to protect their own health and the health of others]
DIMRC (Disaster Information Management Research Centre) [Access to health information resources and technology for disaster and public health emergency preparedness, response, and recovery; connecting people to quality disaster health information and fostering a culture of community resiliency]
HIV InSite [Comprehensive, up-to-date information on HIV/AIDS treatment and prevention from the University of California San Francisco]
Archives/Repositories
Internet Archive [A non-profit library of millions of free books, movies, software, music, websites, digital libraries, repositories and more]
SuperCourse [A repository of lectures and research methods materials on global health and other areas of science designed to improve the teaching of prevention and increase number of scientific publications]
OpenDOAR [Quality-assured global directory of academic open access repositories and their policies]
Africa Portal [A research repository and an expert analysis hub on African affairs]
WHO-IRIS [Published reports, guidelines, news and other documents by the World Health Organization]
arXiv [An open-access archive for scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics]
AfricArXiv [A digital archive for African scientists to upload their working papers, preprints, accepted manuscripts (post-prints), and published papers, with options to link data and code, and for article versioning]
ChemRxiv [an open access preprint archive for chemistry. It is operated by the American Chemical Society, Royal Society of Chemistry and German Chemical Society]
PsyArXiv [A free preprint service for the psychological sciences]
SocArXiv [An online preprint server for the social sciences]
SSRN [Formerly Social Science Research Network, now composed of several specialized research networks devoted to the rapid worldwide dissemination of research]
RePEc [Research Papers in Economics is an open archive supported by hundreds of volunteers worldwide to enhance the dissemination of research in Economics and related sciences]
Zenodo [A general-purpose open-access repository allowing researchers to deposit data sets, research software, reports, and any other research related digital artefacts. For each submission, a persistent digital object identifier (DOI) is minted, which makes the stored items easily citeable]
Explore this Wikipedia list of academic databases and search engines for more free/open access repositories.
Publishers
UNESDOC [UNESCO Digital Library]
Knowledge Unlatched [Knowledge Unlatched (KU) makes scholarly content freely available to everyone and contributes to the further development of the Open Access (OA) infrastructure]
Bioline International [A not-for-profit scholarly publishing cooperative committed to providing open access to quality research journals published in developing countries. BI's goal of reducing the South to North knowledge gap is crucial to a global understanding of health (tropical medicine, infectious diseases, epidemiology, emerging new diseases), biodiversity, the environment, conservation and international development]
Biomed Central [A pioneer of open access publishing, BMC has an evolving portfolio of high quality peer-reviewed journals including broad interest titles such as BMC Biology and BMC Medicine, specialist journals such as Malaria Journal and Microbiome, and the BMC Series]
PLOS (Public Library of Science) [A non-profit publisher, innovator and advocacy organization providing open access to over 200,000 peer-reviewed journal articles in biology, medicine, computational biology, genetics, neglected tropical diseases and pathogens]
J-STAGE [An electronic journal publishing platform for science and technology information in Japan, developed and managed by the Japan Science and Technology Agency (JST); 25 subject areas including medical and life sciences]
AOSIS [Open Access publisher of journals and books; offers online continuing professional development courses for healthcare professionals; also designs, develops and implements eLearning services for schools, universities, and corporates]
SCIRP (Scientific Research Publishing) [Open Access publisher of academic journals and books covering science, technology, medicine and the humanities]
Dovepress [Dove Medical Press, part of Taylor & Francis Group, the Academic Publishing Division of Informa PLC, specializes in the publication of Open Access peer-reviewed journals across the broad spectrum of science, technology and especially medicine]
The National Academies Press [Open Access publisher on a wide range of topics in science, engineering, and medicine, providing authoritative information on important matters in science and health policy; free registration (MyNAP account) required or download as Guest]
IntechOpen [A world leading publisher of Open Access books in science, technology and medicine]
IVIS [An on-line publisher of veterinary books and proceedings; over 1,673 book chapters and proceeding articles currently available; free sign-up required]