Cat-Clicker  
   Unmoderated e-mail discussion group for clicker training for cats.
   http://groups.yahoo.com/group/Cat-Clicker/

Cat Chat of Australia  
   Friendly discussion concerning all cat-related topics. Links to cats and kittens wanted, cat names and dog chat.
   http://members2.boardhost.com/CatChat/

Cat-E-Corner.com  
   A virtual community for cat lovers. Submissions of favorite photos, jokes, and cartoons are welcome.
   http://www.cat-e-corner.com/

TheCatSite.com  
   Several forums on feline health, care, and behavior. Special forums for breeders and for cat rescue.
   http://www.thecatsite.com/forums/

Allexperts Cat Care Q&A  
   Volunteer feline experts answer questions about cat care, and maintenance.
   http://www.allexperts.com/getExpert.asp?Category=1606

CatHobbyist  
   An independent online community of cat hobbyists, businesses, keepers, breeders, and organizations.
   http://www.cathobbyist.com/

Familiars Fanciers Lists  
   E-mail list for people who love their feline familiars.
   http://www.vcnet.com/valkat/sanctuary/ffml.html

About.com Cats Forum  
   Ask questions, share your knowledge with others, discuss the glories and the agonies of being "owned" by a cat, and meet other cat aficianados.
   http://cats.about.com/mpboards.htm

A Cat Crazy Fanatic  
   E-group devoted to a passion for cats. Unmoderated with open membership.
   http://groups.yahoo.com/group/a-cat-crazy-fanatic/

Pure Cat Talk  
   Fora on a wide variety of feline topics including health, rescue and breeds.
   http://www.purecattalk.com/

AusGroup2  
   A discussion forum for breeders and fanciers of Australian Siamese, Oriental, Balinese, Javanese, and Foreign White cats.
   http://groups.yahoo.com/group/ausgroup2/

Yahoo Groups: Siaojaba  
   Devoted to the Siamese and its close relatives the Oriental, Colorpoint Shorthair, Javanese, and Balinese. Open membership, restricted archives.
   http://groups.yahoo.com/group/siaojaba/

Yahoo Groups: CinnamonFawnFanciers  
   Forum for breeders and owners of cinnamon and fawn colored cats.
   http://groups.yahoo.com/group/CinnamonFawnFanciers/

Cat Forum  
   Discussions on feline health and behavior; and cats in general.
   http://www.catforum.com/

Acme House of Cats  
   A place to share feline topics including questions, rescue, health, help, stories and pictures.
   http://members5.boardhost.com/AcmeHouseOfCats/

Tiggers Tales Forums  
   Contains general cat interest forums and photo posting areas.
   http://tiggerstales.com/cgi-bin/anyboard.cgi?cmd=ablist

PurrBalls.com Feline Forums  
   General interest cat chat.
   http://www.purrballs.com/forum/index.php

Cat Chat  
   Message boards covering health, behavioral, and other aspects of cat care.
   http://pub6.ezboard.com/bcatchatatcatstuff

Catkingdom UK Forum  
   Topics include general feline interest, breeder, and show topics. Based in the UK.
   http://uk.catkingdom.org/

Feline Advice  
   General interest board for cat owners to share experiences and get assistance with their feline needs.
   http://www.felineadvice.com/

Cat-World Cat Chat  
   Forums on nutrition, cat shows, purebreds, and general cat interest.
   http://www.cat-world.com.au/forums/

Showcat  
   From a UK site, topics include show announcements and results, breeds, health, and news.
   http://www.showcat.net/forums/index.php

Cat Alley  
   General discussions of care, nutrition, transportation, breeds.
   http://www.petpared.com/forums/index.php?c=3

Kitten Magic  
   Submit a kitten story and read about other kittens. Includes pictures, stories and related links.
   http://www.kittenmagic.com/index_new-1st.php

Purr Pals  
   Offers a BBS for submitters to exchange stories and photos, offer and receive advice about medical, behavioral, and litter box issues.
   http://purrpals.safetee.net/

UK Kittens  
   Group of breeders of pedigree kittens in the UK and for those seeking kittens to enrich their lives.
   http://groups.yahoo.com/group/UKkittens/

Kitty Haven  
   Diverse selection of topics with interest in special needs cats and kittens, primarily those who have tested positive for FeLV and/or FIV.
   http://pub49.ezboard.com/bkittyhaven

PetsHub Cats Forum  
   Open to a variety of feline topics with an active membership.
   http://petshub.com/forums/forumdisplay.php?s=&forumid=5

Ask An Expert  
   Experts with pet care experience participate and answer questions from cat owners. Experts are rated based on answers given and pet owners can apply to become experts.
   http://www.practical-pet-care.com/cat_forum.php

The Cat Arena  
   A community for cat lovers to meet and share common interests. Discussions include a variety of topics, feline-related and not.
   http://www.thecatarena.com/

Kitty Caretakers Unite  
   Message boards, live chat, photos, links for feline health and spay/neuter resources.
   http://groups.msn.com/KittyCaretakersUnite/_homepage.msnw?pgmarket=en-us

Understanding Cat Behaviour  
   A forum for the discussion of cat behaviour issues and problems.
   http://www.understandinganimals.com/forum/index.php?board=2

Cats Forum  
   Information and discussion from cat care and behavior; rescue, stray and feral issues; cat show topics and breeder information; to scheduled chats and grief support from friendly experienced cat people. Free downloads available.
   http://petsforum.com/cats

The Cat House  
   Variety of cat topics plus links to forums for other pets.
   http://www.petpeoplesplace.com/boards/yabb/YaBB.pl?board=catsg

Yahoo Groups: Novice Breeders Advice  
   Assistance for novice breeders. Post messages, photos, links and chat. Unmoderated forum and Yahoo profile required to join.
   http://groups.yahoo.com/group/NoviceBreederAdvice/

The Cat's Palace  
   General discussions on feline health and care. Includes cat of the week, top site list and eCards.
   http://www.thecatspalace.com/

SimplyPets: Cat Message Board  
   For cat lovers to discuss any topics related to cats.
   http://www.simplypets.com/pet-forum/list.php?f=2

Feline Angels  
   Topics range from general cat chate to feline behaviour, health and hazards, new cat advice, breeds and diet and nutrition.
   http://com1.runboard.com/bfelineangels