Skip to Main Content

Finding Grey Literature

Start your Grey Literature search with this guide containing resources and strategies for discovering research produced outside traditional commercial or academic publishing channels.

Clinical Practice Guidelines

Trip
A metasearch engine for evidence-based medicine. Includes guidelines.

NICE Clinical Guidelines
National Institute for Health and Clinical Evidence, UK

Overton
Overton is the largest index of global policy documents, linking them to research, news, and think tank outputs. It helps authors track where their work is cited and how it influences real-world policy and practice.

Best Practice Guidelines
Registered Nurses Association of Ontario

Last Updated: Jun 23, 2025 3:15 PM
URL: https://hslmcmaster.libguides.com/greylit
Print Page

Subjects: Grey Literature

Tags: Researchers, Students