Snail Shop
- Online aquatic invertebrate specialist ships orders throughout the UK and to most European countries.
- http://www.snailshop.co.uk

Crustaforum
- A community with information about shrimp, crayfish and snails.
- http://www.crustaforum.com

Freshwater Shrimp, Crabs and Crayfish
- Pictures and detailed information for individual species of shrimp, crab, crayfish, and lobster.
- http://www.shrimpcrabsandcrayfish.co.uk/

Petshrimp
- The care and keeping of shrimp, with descriptions of both common and uncommon species. Photos and forum.
- http://www.petshrimp.com

Amano Shrimp Online
- Dedicated to freshwater shrimps Caridina japonica. Photographs, general information, and how to breed them.
- http://caridina.japonica.online.fr/English/

Crustacea
- Care, natural history, and photos of freshwater crustaceans including shrimp, crayfish, and crabs.
- http://users.swing.be/sw018249/summary1_uk.htm