Where to look for grey literature depends on the specific topic you're researching. Here are some examples of places to look and things to look for:
- Medical and health science information:
- Embase and other literature databases that include conference proceedings
- Centers for Disease Control & Prevention website
- List of grey-literature producing organizations from the New York Academy of Medicine's Grey Literature Report
- Harvard's Kennedy School "Think Tank" search engine (searches more than 1,200 think tanks and research centers)
- Google's Advanced Search, which can be filtered for domain types (.edu, .gov, .org, etc.) and file types (.pdf, .ppt, etc.)
- ClinicalTrials.gov, which lists clinical trials in the United States
- EU Clinical Trials Register, which lists clinical trials in the European Union
- MedWatch, the U.S. Food & Drug Administration's product safety reporting program for health professionals, patients and consumers
- Drug, medicine, and pharmaceutical information:
- Pharmaceutical companies' websites (brochures, fact sheets, drug package inserts, etc.)
- NIH U.S. National Library of Medicine Drug Information Portal
- Drugs@FDA, a searchable database of the U.S. Food & Drug Administration drug approval documents
- DailyMed, a website with more than 125,000 listings as submitted to the U.S. Food & Drug Administration
- Medical device information:
- Dietary supplement information: