You can sell your dog online on sites like MyPetListing.com. You can also sell your dog by placing a classified ad in your local newspaper or through a flier at your veterinarian's office.
Be careful when you choose to sell your dog online. According to news articles, selling dogs online can be dangerous for the dog. It is difficult to get a sense of a person when you only communicate online. It is better to communicate either over the phone or in person.
Selling your dog must be done with care for the sake of the animal. Get the full names and contact information of anyone who shows serious interest in your pet. Ask all potential buyers to fill out some type of application to help ensure the safety of your dog. Insist on visiting the home that your dog will be moving to, and ask for veterinary references for current and past pets.
Even though you are selling your dog, you want to make sure it is safe and healthy. When you take the time to check out potential owners carefully, you help to ensure that your dog is going to a home as loving as your own was.