Other
Parasitology: Chapter Five: Cestodes
An exhaustive look at numerous types of tapeworms that infect different animals. The site contains numerous pictures and life cycle diagrams. There are links to lectures and additional websites.
Centers for Disease Control and Prevention
Centers for Disease Control: Parasites and Health: Taeniasis
This CDC resource will give you a comprehensive understanding of the tapeworm parasite. You can learn how it infects people, where it's found, the symptoms it causes and the way it can be treated.