Searching the Grey Literature by Since Grey Literature isn't usually found in traditional databases (such as MEDLINE or CINAHL), you need to broaden your scope and consider other sources. Even Google Scholar won't include many grey sources, so depending on your topic of interest, explore other options such as the below tabbed grouping:
Began in 2020. Provides free access to bibliographic information about ongoing and published health technology assessments commissioned or undertaken by HTA organizations from around the world.
Access curated, peer-reviewed learning materials, assignments and presentations in the health and life sciences and other disciplines. Members may also create content on the site. Added functionality available with personal account.
Provides access to research articles made available before the formal publication in a journal (preprints) from arXiv, bioRxiv, chemRxiv, medRxiv and Preprints.org respositories. Added functionality available with personal account.
Conducting a Web search and limiting to "site:.gov" can be a good way to start looking for government-produced grey literature. However, it's good to have some of these sites already on your radar.
Please note: Many US Government websites are currently undergoing modifications to comply with the current administration's Executive Orders. Some sites may display an error or may no longer be active. In those instances, try entering the URL into the Internet Archive (https://web.archive.org/) to view previous versions of the website.
Database of up-to-date information for locating federally and privately supported clinical trials for clinicians and patients.
Find both intramural and extramural National Institutes of Health-funded research projects, publications and patents. See also the Federal RePORTER.
An index of bioethics citations, articles, reports, and other multimedia. Contents cover materials published between 1974-2009 only.
Database of up-to-date information for locating federally and privately supported clinical trials for clinicians and patients.
Database of controlled trials created as part of an international effort to create an unbiased, quality controlled source of data for systematic reviews. Added functionality available with personal account.
