There is a rescue group called Puppy Mill Rescue. I have real issues with this group! They will go to a Puppy Mill Auction and BID (yes you read that right BID) on the dogs that the millers are auctioning off. Their purpose for doing so is to "rescue" those poor dogs that are being bred over and over and kept in rabbit cages and living in filth all their lives and find them good forever loving homes. Adoption fees for some of these unsocialized dogs are in the HUNDREDS of dollars range. 
These same people then preach to the public and educate the public against buying from Pet Stores because those pups came from a puppy mill. By buying a pet store pup, you are lining the millers pocket and enabling them to buy yet more dogs for breeding. 
Does anyone besides ME see the idiotic reasoning here? THEY as a RESCUER can go directly to the PUPPY MILL AUCTION, pay oodles of $ to buy one of these over bred malnourished and abused dogs, hand cash DIRECTLY TO THE MILLER, and that's NOT enabling the mills?! 
Yea, great rescue group! And those poor pups in the petstores should just be euthanized so that they don't ever get a decent home...you know, because they came from a mill so we shouldn't show them any kindness or love or take them home because we all know puppies can choose whether or not they are born in a mill, right?