This site provides extensive information specifically on the West Indian Manatee.

Sea Worlds website provides an excellent overview of manatees and provides extensive information.

This site has a general description of the Amazonian Manatee along with nice photographs

This is another great site which provides an excellent overview of ranging from their habitat to their social behaviors.

Sirenian Internation is a site dedicated to informing it's readers specifically about the different types of manatees and where they are located.

The IUCN website provides a extensive information on the environmental status of animals around the world.

This website has extensive informtion concerning the conservation efforts used to protect manatees.

George Stover's Adventure Production has quite a few videos about manatees that are both educational and entertaining.