All About Chimpanzees: Information on the anatomy, diet, and communication of this animal.
Bonobo (Pygmy Chimpanzee): Contains a fact sheet which includes information on social structure and behavior.
Bonobo Sex and Society: An article on the sexual behavior of Bonobos and the effect this has on ordering Bonobo society.
Bonobo Society: Amicable, Amorous and Run by Females: An overview of the social structure of the Bonobo.
Bonobos: The Left-Bank Chimpanzees: Conservation, zoo, and species information.
Chimpanzee: Comprehensive information about the size, population, life span, habitat, and diet of this intelligent animal.
Chimpanzee Central: Detailed description of chimp behavior, their similarities to people, and tool use.
Comparison of Some Similar Chimpanzee and Human Behaviors: Essay about symbolic communication, medicinal plant usage, and Bonobo peace keeping.
Jane Goodall Institute: Meet the researchers and chimps at this center trying to understand a close relative of humans.
National Geographic Kids: Chimpanzees: An overview of chimpanzees, with photographs, videos, and, fun facts.
Oakland Zoo: Chimpanzee: Describes the social structure, life cycle, and habitat of this primate.
Pan Troglodytes: Contains pictures, description, and classification information.
PBS: Jane Goodall's Wild Chimpanzees: Contains images, video, the story of Jane Goodall, and how they are the closest relatives to humans.
Pygmy Chimpanzee (Bonobo): Detailed fact sheet, including vocal and gestural communication, behavior and morphology, with references. Includes images.
Save the Chimps: Group that cares for abandoned and orphaned chimpanzees.
The Most Powerful Chimpanzee of the Netherlands: Research on the Arnhem Zoo chimpanzee colony and publications about teasing and the development of quasi-aggressive behavior.
Wikipedia: Chimpanzee: Encyclopedia article talks about the history of human-chimpanzee interaction, and their relationship to humans.