What is a Puppy Mill?
- Explains the criteria for designation as a puppy mill, and why and how to avoid puppy mill dogs.
- http://www.canismajor.com/dog/puppymil.html

Prisoners of Greed
- Includes facts about commercial kennels, auctions, and brokers and articles about considering being a breeder, adding a dog to the family, and how to help.
- http://www.prisonersofgreed.org/

United States Kerry Blue Terrier Club: A Word about Pet Stores
- Advises buyers to look for dogs from responsible breeders and suggests they avoid pet store puppies that are supplied by puppy mills.
- http://www.uskbtc.com/articles/article.php?id=160

Prisoners for Profit
- A first hand account about puppy mills and how to put an end to them.
- http://www.turner.com/planet/promotions/puppies/prisoners.html

No Puppy Mills
- Dedicated to educating the public about the commercial dog industry in America. News and information on puppy mills, dog auctions, breeders, regulators, registries, and how to research a pet store puppy, a newspaper ad, and a website.
- http://www.nopuppymills.com/

IDA Campaign: Puppy Mills
- Background, undercover investigation, and evaluations of official inspection reports.
- http://www.idausa.org/campaigns/puppy/puppymills.html

Companion Animal Protection Society
- Dedicated to ending the abuse and suffering of pet shop and puppy mill dogs. Membership information, efforts and accomplishments, and fact sheet.
- http://www.caps-web.org/