Systematic Reviews: Grey Literature

Grey literature is a term to describe information which is produced outside of traditional publishing and is often not indexed on databases. These publications can help compliment your research by providing a rigorous and complete overview of research on a particular area.  Grey literature can be a great source of statistics and data and can take many different formats. Below is a list of some of these formats:

• Blogs                                                 
• Conference papers/proceedings
• Datasets
• Discussion lists
• Dissertations and theses
• Government reports
• Newsletters
• Pamphlets
• Preprints
• Policies and guidelines
• White papers
• Working papers