A technical defintion...
"That which is produced on all levels of govenment, academics, business and industry in print and electronic formats, but which is not controlled by commercial publishers." (Fourth International conference on Grey Literature, Washington D.C., October 1999)
Examples of may include:
Market research reports
Newsletters and/or bulletins
Dissertations & Theses
Why use grey literature?
- It may be the only timely information available.
- It may be a body of information that only governments typically collect and report on.
- It may be valuable data/research conducted as part of an academic exercise (dissertation, working papers, etc.).
- It may be a narrow topic with little published information available.
- Hint: If you are running into this issue, you may want to consider revising your topic if peer-reviewed literature is required.