Crustacea.Net: Provides an interactive information retrieval system for the world crustaceans.
Crustaceans of Southern Australia: Guide to the diverse fauna of the Victorian coastline.
IV Taller - Brachyura: Workshop on crustacea, specially brachyura, held in Buenos Aires/Argentina (5-8 April, 1999)
Land Crabs of the Seychelles islands: This site contains information about the various coastal and terrestrial crabs of the Seychelles islands.
Marine Crustaceans of Southern Australia: A beautiful site with photographs and articles about a large variety of crustaceans.
Nonindigenous Crustaceans: Describes common methods of introduction, with links to descriptions of species and US distribution maps.
The Crustacean Society: International society with the purpose to advance the study of all aspects of the biology of crustaceans, and to enhance the exchange of information among persons interested in them.
The Plankton Net: Online Guide to Research in Plankton Ecology and Biological Oceanography
Tree of Life - Crustacea: Taxonomy reference information.
World Species List: Crustacean Database Listing
Zooplankton Sensory Systems: Dan Hartline and Petra Lenz's research (primarily crustacean).