Encyclopedia of Earth
Encyclopedia of Earth: Physics & Chemistry: Catalysis
Gives definition of catalysis, an explanation of how it works, different kinds of catalysis and examples, substances that impact on the catalytic process, the many applications of catalysis, and a history of catalyst technology.
Chem4kids
Chem4 Kids: Catalysts & Inhibitors
This site explores what catalysts and inhibitors are, as well as what they do. Additional content includes a focus on Lisa Meitner and her contribution radiochemistry.