Fish & Wildlife Service
Endangered Species Act of 1973
http://www.fws.gov/endangered/pdfs/ESAall.pdf (PDF 176KB)
The Fish and Wildlife Service and the National Oceanic and Atmospheric Administration (NOAA) share responsibility for administration of the Endangered Species Act.
Endangered Species Program
See particularly the Publications page.
Endangered Species Bulletin
International Union for Conservation of Nature (IUCN)
Red List of Threatened Species
Provides information on species that have been globally evaluated using the IUCN Red List Categories and Criteria, which determines the relative risk of extinction. The main purpose of the IUCN Red List is to catalog species that are facing a higher risk of global extinction (i.e., those listed as Critically Endangered, Endangered, or Vulnerable).
National Oceanic & Atmospheric Administration (NOAA) Fisheries Service
Marine Mammal Protection Act
Office of Protected Resources
NOAA's Office of Protected Resources works to conserve, protect, and recover species under the Endangered Species Act (ESA) and the Marine Mammal Protection Act (MMPA).
World Conservation Monitoring Centre
Maintains several databases on endangered and threatened species and a searchable library catalog.
World Wildlife Fund
Endangered Species Protection
Includes a searchable map database of more than 26,000 species worldwide. Check out the podcast, “Wild Things.”