If you have a business with a genuine business address then you should definitely get listed at Google Local, also known as Goggle Places.
Here’s an example of the listing of one of our customers (Infrontdriving) showing their Google local Entry.
The top line is a Google Adwords paid for advert.
Next comes the Google local results
Finally comes the natural search results.
By registering at google local you can get listed in the section with the map. I’m sure you can see that it must be worthwhile!