Here are some very free ways to geo-target through free business listings on the Internet.
Yellow Pages – Free listing of your business; company name, address, phone number, email, a brief description of business, industry category, website, hours of operation, payment method, certifications, licenses and affiliations. Click on the link ‘Get your free listing’ and you can create a free listing for your business in a few simple steps.
Google Maps - Free listing of your business; company name, address, phone numbers, email, website a brief description of business (200 characters) and type of industry. Go to the link put your business on Google maps and then set up a google account which is just establishing what email and password you will use to log on.