Crocodilia
- Detailed information on the Order Crocodilia from the Animal Diversity Web, including classification and many species accounts.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Crocodilia.html

Crocodilian Species List
- Database covering all 23 species of extant crocodilians, including alligators, caimans, crocodiles, and the gharial. Includes distribution and habitat information, maps, photos and head drawings, plus biology, ecology, and conservation information.
- http://www.flmnh.ufl.edu/natsci/herpetology/brittoncrocs/csl.html

Lord of the Nile
- Feature article from Al-Ahram Weekly about Egyptian attitudes to the Nile crocodile, which is reportedly making a comeback.
- http://weekly.ahram.org.eg/2002/569/fe1.htm

The American Alligator
- Features populations, habitats in Florida, reproduction, feeding habits, behavior, meat and hides, harvest permits, living with alligators and safety tips.
- http://agrigator.ifas.ufl.edu/gators/

SuperCroc
- Learn about the worlds largest crocodile; Sarcosuchus imperator. Learn about how it was found in the Sahara Desert during the 2000 Dinosaur Expedition in Niger by paleontologist Paul Sereno and his team.
- http://www.supercroc.com/

Gharial
- Short page with basic information about gharials, (also known as gavials). Part of the Animals at the Fort Worth Zoo site.
- http://www.whozoo.org/students/lydia/gharials.htm

OneWorld Magazine - The Crocodile Files
- The Crocodile Files explores the facts and the myths about the world's most fascinating reptiles.
- http://www.oneworldmagazine.org/tales/crocs/

Crocodile Specialist Group
- Conservation-oriented group for researchers and farmers. Offers detailed species information, newsletters and a photo gallery.
- http://www.flmnh.ufl.edu/natsci/herpetology/crocs.htm

Crocodile Library
- An extensive private collection of abstracts and summaries on crocodilians.
- http://win.tiho-hannover.de/croc/

The Bibliography of Crocodilian Biology
- Repository of references for scientific research on crocodiles, alligators, caimans and their relatives. Topics cover many aspects of their biology and there is also a 'General Interest' section.
- http://itech.fgcu.edu/faculty/mmeers/bcb/bcb.html

American Alligator (Alligator mississippiensis)
- Photos and information about the American alligator.
- http://www.thebigzoo.com/Animals/American_Alligator.asp

Nova Online - Crocodiles
- Companion site to the television program, with full transcript, interactive features, , an interview with a croc specialist, and information on all 23 species or crocodiles and alligators.
- http://www.pbs.org/wgbh/nova/crocs/