If you are looking for a specific breed you can still get that breed and adopt. Visit
petfinder.com - which has listings of adoptable dogs in shelters and rescues all over the country. You can
search by breed and look
for small dogs, which they do have in
plenty of shelters and breed specific rescues all over the country. In fact, you may have better luck with Petfinder than you would with just visiting your local shelter if you are looking for a small dog of a specific breed.
Often breed rescues (such as dachshund rescue) will search local kill shelters and scoop up those breeds of dogs before they are killed. The dogs will usually be put in a foster home to get socialized with a family and/or other pets, and then put up for adoption on the breed rescue's website or on Petfinder.com. If you know what breed you want to get, I'd suggest you
google that breed's name along with "rescue" - you will likely find many organizations that can help you find the right dog.
I cannot speak strongly enough against buying a dog online. As the previous posters have mentioned, unless you are buying from a reputable breeder (often someone who shows that breed of dog), you are probably
buying from a puppymill. To get an idea of where a dog ordered online may be coming from, you may want to visit the
videos the Humane Society of the United States has posted of a
raid they did on a puppymill in TN (where they rescued 700 dogs - mostly small dogs). (
http://video.humanesociety.org/vide.../Tennessee-Puppy-Mill-700-Dogs-Rescued-Day-2/).
Many of these dogs live in
cages stacked on top of each other, with feces (that are never cleaned) dripping down onto the dogs at the bottom of the stack. At this puppymill in TN, they had dogs living in homemade crates that had
chicken wire for flooring (to allow all the animal waste to fall to the ground). When these dogs were rescued, they had
cuts on their feet from standing on wire all dog long. Many had their
nails ripped off there they had been caught on the chicken wire. These dogs lived in
horrendous conditions with little or no human contact, and their puppies were sold online to those who didn't know any better.
A good thing to look for if you are still dedicated to finding a dog from a breeder online is to see if that "breeder" breeds many breeds of dogs or is dedicated to one or two particular breeds. Puppymills are notorious for breeding a variety of dogs - usually they breed small, cute dogs that are easy to sell online and/or are fashionable at the moment (think the run on chihuahuas when the Taco Bell Dog was so popular). Most reputable breeders are dedicated to the advancement of a particular breed. They will dedicate their lives to finding great dogs and breeding them for the purpose of improving that breed, rather than jumping around to breeding different breeds of dogs based on what's popular at the moment. Also, a reputable breeder will be happy to allow you to come visit the dog you want, visit its parents, visit the facility. This will not happen if you buy a dog online from a faceless "breeder."
I apologize if this sounds preachy, but I own three small rescue dogs who lived in absolutely horrendous puppymill conditions prior to being saved and put up for adoption. They are all of the cute variety - very popular breeds, commonly featured on TV and movies, therefore commonly desired by people looking to get a new pet.
There are so many dogs that get put in shelters or rescues every year that are killed that it is easy to find a good dog to adopt. In fact,
in this bad economy there are more families having to put perfectly good family dogs (potty trained, good with kids), in shelters because they cannot afford them any longer. This means
those who are shopping for a new dog are in a better position to get a shelter/rescue dog. In this way it's a "buyer's market" for shelter/rescue dogs.
Please, please, please reconsider buying a dog online and look at adopting a rescue dog on Petfinder or from a breed rescue. Rescue dogs are so grateful to be rescued by their new families, and it's a great opportunity to give back to the world at large by rescuing a helpless little animal.