European Hedgehog Research Group: Workshops, addresses of hedgehog researchers, information on caring for sick or injured hedgehogs, literature.
Family Erinaceidae (Gymnures and Hedgehogs): Classification and information from the Animal Diversity Web.
Hedgehogs (Erinaceus europaeus) in Cornwall: Brief information from Cornwall Wildlife Trust.
The Hedghogz Home Page: Information on the European hedgehog, found in the UK and Western Europe.