African Penguin (Spheniscus demersus)
- Many photographs and video clips of this species and information on its biology and status.
- http://www.arkive.org/species/GES/birds/Spheniscus_demersus/

Bettys Bay African Penguin Colony
- Information on the vulnerable species, Spheniscus demersus, with video clips of its activities at one of its breeding sites in South Africa.
- http://www.viewoverberg.com/PenquinPage.asp

African Penguin
- Information from Wikipedia on Spheniscus demersus, including its description, behavior and threats.
- http://en.wikipedia.org/wiki/African_Penguin

Effect of Substrate and Ambient Temperature on Burrowing African Penguins
- Article on research into the nesting habits of Spheniscus demersus.
- http://elibrary.unm.edu/sora/Wilson/v100n01/p0131-p0132.html

Penguin Cam
- Webcam of Rockhopper Penguin and Blackfooted Penguin exhibit at Monterey Bay Aquarium. Provides link to fact sheet on Blackfooted Penguins.
- http://www.mbayaq.org/efc/efc_splash/splash_cam.asp

Spheniscus humboldti (Peruvian Penguin)
- Photo and scientific classification of this species.
- http://animaldiversity.ummz.umich.edu/site/accounts/pictures/Spheniscus_humboldti.html

Spheniscus demersus (Jackass Penguin)
- Discusses the ecology and behavior of this bird. Includes a photograph.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Spheniscus_demersus.html