We, too, rescued an abused dog. She was so humble she would only crawl in our presence. Now she loves to run and play. She makes a very good friend.
We adopted a 1 year old border collie last year that also had been neglected, and I suspect abused. The dog is simply wonderful - smart, outgoing, and always wants to know where his sheep are (my children). The poor thing was so skinny when we got him, but he is all muscle now.
If anyone is looking for a dog, please consider the local shelter.