Grey literature is the unpublished, non-commercial, hard-to-find information that organizations such as professional associations, research institutes, think tanks, and government departments produce.
Grey literature can include:
- census and statistical data
- reports (pre-prints, preliminary progress and advanced reports, technical reports, statistical reports, memoranda, state-of-the art reports, market research reports, etc.)
- theses and dissertations
- conference proceedings
- bibliographies
- systematic reviews
- official documents not published commercially (primarily government reports and documents)
Go to the sub-sections of this page for some recommended sources, or browse through some comprehensive lists of organizations that publish grey literature using the links below.
