True, I have seen lots on petfinder. But even that isn't as easy as everyone makes it out to be. I tried adopting two different pups from a rescue.
The first pup, I absolutely fell in love with her. I was approved for an adorable mastiff/rottweiler mix. My vet even gave us glowing reviews. The rescue coordinator said she got so many responses that she narrowed it down to the top three (we were in the top three) but ultimately, the pup would go to a home with a fence; which our subdivision prohibits. :-( So we lost her. I specifically told her that with my 3 children and male rottweiler, I felt adamant about getting a female PUPPY. She told me I couldn't have a puppy because other homes were more appropriate due to their fencing, but "Hey, if you like rottweilers, this 2 year old male just showed up a couple of weeks ago. You could have him!" I ask for a female puppy and she offers me a 2 year old male with an unknown history when I have 3 small children. Even with my rott experience, this women is crazy!!
The second pup I tried to rescue, I was approved for her completely, but ended up declining. She came from a feral mother.........and well........that just sounded kind of shaky to me. I'm sure she will be a nice pet for someone, but not me.