This is a fantastic piece over on Small Business Hub, by Mike Volpe. Great insight on a free resource,

Many small businesses do not know that you can get some FREE advertising on Google, using Google Local or Google Maps. Google is looking to increase the value of their local search and their mapping application, so they have a simple way for you to tell them some information about your business, and now they are infusing those results into their main search engine. This will help you show up in searches and get more traffic, leads and customers. For example, a nonprofit volunteer organization I work with called the Boston Scholars Program is now listed at the TOP of the Google search results for searches like “volunteer in boston“, “volunteer boston ma“, and “volunteer boston, ma“. See the image below.

Source: Free Advertising on Google – A How To Guide