What is Grey literature?
Grey literature is “information produced by all levels of government, academics, business and industry in electronic and print formats not controlled by commercial publishing”. (GreyNet) Grey literature includes policy documents, statistics, blogs, theses and dissertations, reports, videos, clinical practice guidelines and websites - among other things!
Grey literature should be critically assessed to make sure it is credible. It need to be off the of the same high standard as other sources of information you are citing in your research.
Below are some examples to explore: