Please do not buy puppies from puppy mills or sources that buy from puppy mills. Pet stores typically get their dogs from puppy mills.
Puppy mills are disgusting places that breed dogs in filthy places. The mothers receive little to no care and are underfed and do not receive vet care. The people who run puppy mills are interested in one thing, money. It is common to see very sick, underweight and even dead dogs tied up to trees or posts. Many of the puppy mill dogs are sleeping in their own feces.
In September 2007 240 dogs were seized from a puppy mill in Texas. Please visit KLTV to see the story and the video of the puppy mill.
Many people think they are "rescuing" a dog from the mill when they buy one. In fact you are SUPPORTING THE PUPPY MILL by buying their product.
Puppy mills are located everywhere. Many puppy mills are close to Maryland with many in West Virginia and Pennsylvania.
Reputable breeders will have clean kennels and clean dogs with records of their proper care.