Public Health 

What is Gray Literature? (free Web resource)

http://www.csulb.edu/library/subj/gray_literature/

Introduction to concept of gray literature, which is any material that is not published in a standard sequence or available through traditional channels. Among others, gray literature includes policy briefs, think tank reports, and working papers. This guide, from the University Library at California State University, Long Beach, provides tips about how to locate gray literature and what to do when you cannot find something you need. Gray literature is particularly important in the field of public health, which relies on a wide range of resources to produce an accurate picture of population health.

http://www.nyam.org/library/grey.shtml

Bimonthly publication from the New York Academy of Medicine, which provides access to the grey literature produced by numerous organizations. A small sampling of these organizations includes: the American Lung Association; the Center on Budget and Policy Priorities; the National Resource Center on Domestic Violence; the United States Geological Survey; and the World Health Organization. In one place, the Report provides convenient access to materials that would otherwise be difficult to locate.

http://www.nlm.nih.gov/nichsr/ehta/chapter10.html

Health technology assessment (HTA) is a field of health services research that analyzes the effectiveness of technological interventions in improving health. In 2000, the US National Information Center on Health Services Research and Health Care Technology (NICHSR) collaborated with the Canadian Coordinating Office for Health Technology Assessment to produce an electronic book about how to find HTA resources. Chapter 10 of the text provides tips for locating grey literature in this field.