- 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.
- 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).
- Branchiopoda (6)
- Cirripedia (2)
- Copepoda (7)
- Malacostraca (34)
- Ostracoda (3)