- African Primates
- Apenhof
- Bonobo:Sex and Society
- Bonobos
- Chimpanzees in Research
- Dian Fossey
- Gerald Durrell
- Global Spirit
- Gorilla reizen
- Grungy Ape
- Ham the Astronaut Chimp
- Jane Goodall Institute
- Jane Goodall Instituut NL
- Koko the Gorilla
- Language Research Center
- Looking at Chimpanzees
- Orangutan Foundation Intern.
- Primate Info Net
- Save The Chimps
- Simian Society of America
- Stichting Aap
- The World of Chimpanzees