Maine Coon 2000 - Interest group open to the general public. List of participants articles and general data. Available in English and Danish.

Maine Coon Breeders and Fanciers - Founded in 1968 to preserve protect and promote the breed. Breed standards articles and lists of available kittens and cats.

Maine Coon Cat Club of Great Britain - International club that includes breed history guide to choosing cats breeder list club champions and membership data.

Maine Coon Guild - Based in the United Kingdom with international contacts that aim to promote breed welfare. Details of registered breeders and show data.

MCPolys.com - Dedicated to the promotion and proctection of the polydactyl which is in danger of extinction. News and images as well as relevant data.

Native Maine Coon Cat Association - Contributes information regarding the history and evolution of the breed genetic topics and breeding articles.

United Maine Coon Cat Association - Cat Fanciers' Federation club. Contains charter history officers list of champions and membership data.

United Maine Coon Fanciers of Australia - Dedicated to the breed specific club. Photographs feline information links to members and contact details.