Grey Literature

A private web browser that doesn't track your location or search history, so that your search results are not affected by the "filter bubble".

GreySource provides examples of grey literature to the average net-user and in so doing profiles organizations responsible for its production and/or processing. GreySource identifies the hyperlink directly embedded in a resource, thus allowing immediate and virtual exposure to grey literature. The web-based resources appear within categories derived from the COSATI (American) and SIGLE (European) Classification Systems, which were adapted by the OpenGrey Repository.

As of summer 2021 OpenGrey content has been archived and is no longer being updated, but it contains European grey literature.

AHRQ provides data on the cost and use of health care, scientific information on health care and results of medical treatments, as well as data on special needs of priority populations.

The Bioethics Research Library at Georgetown University is an interdisciplinary and multi-format collection on ethical issues related to health care, biomedical research, biotechnology, and the environment.

CDC Stacks is a free, digital archive of scientific research and literature produced by the Centers for Disease Control and Prevention (CDC). This online archive is composed of curated collections tailored for public health research needs.

Provides research-based information about the effects of health and social care interventions via CRD databases and undertakes systematic reviews evaluating the research evidence on health and public health questions of national and international importance.

Images from the History of Medicine (IHM) provides access to over 70,000 images in the collections of the History of Medicine Division (HMD) of the National Library of Medicine (NLM). The collection includes portraits, photographs, caricatures, genre scenes, posters, and graphic art illustrating the social and historical aspects of medicine dated from the 15th to 21st century.

This list is composed of organizations and agencies whose materials appear on MedlinePlus health topic pages. These organizations include NIH Institutes, Centers and Offices; other U.S. federal government agencies; and selected non-government organizations. The consumer health content they create meets the MedlinePlus Guidelines for Links.

Free access to reports from the Pan American Health Organization (PAHO).

Not updated since 2017. An electronic archive for self-archive papers in any area of Psychology, Neuroscience, and Linguistics, and many areas of Computer Science (e.g., artificial intelligence, robotics, vision, learning, speech, neural networks), Philosophy (e.g., mind, language, knowledge, science, logic), Biology (e.g., ethology, behavioural ecology, sociobiology, behaviour genetics, evolutionary theory), Medicine (e.g., Psychiatry, Neurology, human genetics, Imaging), Anthropology (e.g., primatology, cognitive ethnology, archaeology, paleontology), as well as any other portions of the physical, social and mathematical sciences that are pertinent to the study of cognition.

Search a half-century of U.S. international aid records.

CiteSeerx is an evolving scientific literature digital library and search engine that has focused primarily on the literature in computer and information science. CiteSeerx aims to improve the dissemination of scientific literature and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness in the access of scientific and scholarly knowledge.

The NASA STI Repository (also known as the NASA Technical Reports Server (NTRS)) provides access to NASA metadata records, full-text online documents, images, and videos. The types of information included are conference papers, journal articles, meeting papers, patents, research reports, images, movies, and technical videos – scientific and technical information (STI) created or funded by NASA.

OSTI.GOV is the primary search tool for DOE science, technology, and engineering research and development results and the organizational hub for information about the DOE Office of Scientific and Technical Information. It consolidates OSTI’s home page and our now retired primary search tool SciTech Connect. OSTI.GOV makes discoverable over 70 years of research results from DOE and its predecessor agencies. Research results include journal articles/accepted manuscripts and related metadata; technical reports; scientific research datasets and collections; scientific software; patents; conference and workshop papers; books and theses; and multimedia. OSTI.GOV contains over 3 million records, including citations to 1.5 million journal articles, 1 million of which have digital object identifiers (DOIs) linking to full-text articles on publishers' websites.

Science.gov searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.