NLM supports research in the field of grey literature via GreyNet Membership
NLM is listed in the Crossref Funder Registry
Since 2021, the U.S. National Library of Medicine has supported research on grey literature both within its organization and in collaboration with other research organizations. Today, research and education on grey literature stands much to gain through the use and application of persistent identifiers such as the DOI, ORCiD, ROR ID, and Funder ID. NLM has enabled GreyNet International to sustain and develop its digital resources in this way and provides an example to other communities of practice in this field of information. Below is an example of a digital resource openly accessible thanks to funding via the National Library of Medicine.