Many of your customers or potential customers are likely on some social network site. You should have a social networking profile for your business. Find out what social media networks your demographic uses, and use them to promote your business; otherwise, you are not finding all the customers you can!
Promoting your business can be easier with Twitter. Once you understand how it works, you will see the potential for hundreds, or even many thousands, of new customers. Use every available opportunity to explore the ins and outs of managing a Twitter account, such as hash tags, following other users, and keyword usage.