The World Library of Toxicology, Chemical Safety, and Environmental Health is a free global Web portal that provides the scientific community and public with links to major government agencies, non-governmental organizations, universities, professional societies, and other groups addressing issues related to toxicology, public health, and environmental health. It seeks to overcome barriers to the sharing of information between countries by creating a partnership of national and international organizations contributing high-quality scientific information resources in toxicology and environmental health to a borderless data depository. The World Library of Toxicology is a work in progress made possible by the efforts of our global network of Country Correspondents and users. With links to Toxipedia on general toxicology information and user guide.