The below resources are in-depth webinars, courses, and training on grey literature or related topics. Some training sources require a fee for participation.

GreyForum Series, GreyNet: The GreyForum is a series of onsite and online courses, seminars, and workshops, hosted by GreyNet, where grey literature provides common ground for information professionals and practitioners in the process of knowledge transfer.

Grey (Literature) Matters recorded webinar series, Medical Library Association, USA: This series of three webinars, presented by Sarah Bonato and Barbara Folb, provides excellent preparation for librarians, information professionals, or others preparing systematic searches. Webinars can be purchased individually or as a package. The three webinar topics are: