If you are a brick and mortar business with a listed address and phone number, most likely, a page awaits there for you. So have you claimed your page yet?
If your wondering why this is important for your business, you really need to get acquainted with how people are searching for businesses in this day and age. Yellow pages are all but obsolete unless it's the online version and "google me" is the norm. The mobile revolution solidifies this trend further especially for local businesses. 1/3 of all local searches are on mobile devices and there is strong evidence that the use of mobile devices will surpass the pc by 2014. Need I say more.
Your not too late though as the point above states, only 4 million pages have been claimed as of yet, so if you get on it today it will be too late for your competition.
Now I could show you how to do it and re invent the wheel but I think these folks show you how to make that happen in a very comprehensive and easy to follow way. So head on over to: http://www.jm-seo.org/serious-humor/google+local-seo.html