United States Environmental Protection Agency - This mercury site provides a broad range of information: actions by EPA and others, including international actions; effects on people and the environment; and how to protect you and your family.

European Union Mercury Strategy - The European Commission’s mercury strategy that envisages a number of actions to protect citizens' health and the environment.

United States Geological Survey - USGS provides information on mercury sources, cycling, bioaccumulation and toxicity to assist land and resource managers reduce mercury hazards to people and the environment.