How do I find my lost dog?

I went to work last week and left my best friend in my neighbors back yard with his female playmate and when I returned later he was gone. He's an 85lb. American Stafford shire Terrier("pit bull" for the uneducated) who just turned 1 year old. His coat is a seal color with two white spots on his chest. I've contacted all of the animal control org. and the Humaine Society, but still no Abrams. Please help me if you have any info. I live in Hoover Al. (205)-317-8434 Brian