Cinnamon is still missing? I thought surely she'd be back right now. I wish some people would be more pro-active when they find lost animals!! I know a lot of people here are. But for example I met this fellow at the pool yesterday who told me this story of finding a golden retriever puppy in a parking lot and keeping him.
He said he didn't try to find the owners, when I asked. He simply decided he wanted this puppy for himself & just took him home and kept him forever. He acted like this was a totally normal thing to do, but it's not. In all likelihood, the puppy belonged to someone. It's heartless and cruel for people to worry the old owners this way, never knowing what has become of their beloved babies. but i'm rambling.
As catmandu says *Don't give up.* It's possible someone not too far away is taking care of her, as mentioned by others here. Gosh, you must miss her terribly.