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Arachnophiliac: Captive Care of the Common Kingsnake
This page is a good starting point for gathering expert facts about caring for a pet kingsnake. This article was written by a veterinarian who provides a good list of references for properly caring for pet snakes of varying species.
San Diego Zoo Global
San Diego Zoo: Snakes
An in-depth description of snakes, including their classification, appearance, habitat, adaptations, reproduction, diet, and other interesting facts. Also includes pictures, video, and sound bytes.