NOAA
Noaa: The National Marine Mammal Laboratory: Leopard Seals
Resource provides information about leopard seals, such as habitat, classification, diet, etc.
Other
Leopard Seal Fact Sheet
A concise but informative site that contains general information about the leopard seal and briefly touches on the relationship between this seal and man.
Other
Fishin' for Facts: Leopard Seal
A brief site that discusses the scientific name, size, diet, predators, and distribution of the leopard seal.
Other
Antarctic Animals: Leopard Seals
A very short description of this solitary predator with a revealing picture that brings home the ferocity of this mammal.