Answered By: Harry L. Whitlock II
Last Updated: Jan 23, 2018     Views: 27

Grey (or gray) literature refers to any literature published by a researcher or an organization that is not a book, content within a journal or magazine, or is not published by commercial publishers. Usually these resources are not indexed or cataloged. The resources may also be part of the "Deep Web," meaning they cannot be found easily through a web browser search. These publications might be conference proceedings, government documents, internally published studies, and other similar forms of documents created by government, academic, organizational and business entities.

This library guide provides links to government and non-governmental agencies that endeavor to track grey literature in health, social, and hard sciences:

If that guide does not direct you to useful resources, submit your question to

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