Outlaw the Animal Circus
- Outlines incidents of circus animal cruelty, undercover investigations, photo gallery and a campaign to ban the exhibition of animal circuses. Based in Australia.
- http://www.animalactivism.org/campaigns/circus/

HSUS - Circuses
- Collection of articles with reasons to oppose circuses using wild animals. From Humane Society of the United States. Washington DC, US.
- http://www.hsus.org/ace/12019

IDA - Circus Facts
- Travel, pain and public safety issues. From In Defense of Animals. California, US.
- http://www.idausa.org/facts/circusfacts.html

NAIA - Animals in Education and Entertainment
- Includes articles about bans on circus animals. From The National Animal Interest Alliance. Oregon, US.
- http://www.naiaonline.org/body/articles/archived_articles_educa_enter.htm

Circuses.com
- Factsheets, Kids' Corner, the animals, circus travel schedules, description of the unnatural lives circus animals live, and what you can do. Part of the PETA family of sites.
- http://www.circuses.com/

What's Wrong with Circuses and Rodeos?
- From an Animal Rights FAQ (Animals in Entertainment). David Pearce. Brighton, UK.
- http://www.hedweb.com/arfaq/arsec9q.htm#q72