Silvery - 6:59 pm on May 10, 2010 (gmt 0)
Google looks at a number of factors to try to determine relative popularity and ranking.
So, newer businesses will be at a disadvantage over older, better-established businesses.
You need to perform promotional activities such as getting mentioned in local newspapers online, local blogs, and add your listing into top directory sites such as internet yellow pages.
There is more to it than that, but this would be a good start.