Oakland Zoo: Spider Monkey
- Contains a picture and facts such as where it lives and what it eats.
- http://previous.oaklandzoo.org/atoz/azspdmky.html

Oakland Zoo: Squirrel Monkey
- Color photograph and description.
- http://previous.oaklandzoo.org/atoz/azsqmky.html

Colombian Black Spider Monkey
- Contains information about their physical characteristics, diet, and habitat.
- http://www.scz.org/animals/m/cbspdr.html

The Perils of Keeping Monkeys as Pets
- Explains why monkeys make bad pets.
- http://news.nationalgeographic.com/news/2003/09/0916_030916_primatepets.html

San Diego Zoo: Monkey
- Contains monkey facts, differences between Old World and New World monkeys, and how to help them survive.
- http://www.sandiegozoo.org/animalbytes/t-monkey.html

Cebidae: Information
- Characteristics and detailed species accounts of the New World monkeys.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Cebidae.html