National Geographic Kids
National Geographic Kids: Animals: Tigers
"The scientific name for the tiger is 'Panthera Tigris.'" This site includes video and audio clips, fun facts and a map. Other web links are available, which makes this a good site for research projects.
Other
Shunya's Site: Cheetah
A brief overview of cheetah's size, characteristics and habits are listed on this site. It also provides 20 high quality images of cheetahs in their habitats.
Regents of the University of Michigan
Animal Diversity Web: Jaguar
Comprehensive note about the jaguar includes taxonomic classification, specimens, and details about this carnivorous cat's habitat and role in the ecosystem.
Other
The Snow Leopard Conservancy
This organization works to protect the snow leopard and to educate people about this endangered species.
Nature Conservancy
Nature Conservancy: Animal Species Profiles: Jaguar
Short illustrated profile of the jaguar, the third-largest cat in the world.