Grey literature is material of a scholarly nature produced outside the usual publication channels such as peer-reviewed journals; it is generally not commercially published (Example). Grey literature can include
Grey literature can be harder to identify and find because it often isn't formally published or indexed in the databases used to find scholarly literature.
Other strategies to help identify grey literature include:
Nonprofit organizations may have ideological perspectives or may be nonpartisan. It's useful to review the About Us section of the organization's website and look for other views about the organization in order to place their work in context and better evaluate the authority and credibility of their work.
Online publishing allows greater opportunities for specialized news sources to reach interested audiences. As with other types of sources, checking information about these sources helps in determining whether the articles on these sites are credible.
Some newspapers have reporters who have or develop expertise in certain topics due to their education and/or experience. Some newspapers also provide in-depth reporting in addition to daily news. Some examples are listed below.
