Dall’s Porpoise: Phocoenoides dalli
- Photographs and notes on this species from the North Pacific, also known as the white-flanked porpoise.
- http://www.bbc.co.uk/nature/wildfacts/factfiles/128.shtml

Phocoena phocoena, Harbour porpoise
- Drawing and photograph of this species and extensive information on its distribution and population size, its biology, behavior and migration.
- http://www.cms.int/reports/small_cetaceans/data/P_phocoena/p_phocoena.htm

Harbor Porpoise, Phocoena phocoena
- Information on this species, including its description and behavior, range, ecology and life history.
- http://marinebio.org/species.asp?id=364

The Porpoise Page
- Information on the physiology, morphology, and life history of porpoise species (Family Phocoenidae), with explanation of the difference between porpoises and dolphins.
- http://www.theporpoisepage.com/