First, create a business fan page on Facebook. Your Facebook postings will reach out directly to the kinds of people who are most likely to act on your offerings. Use the page to engage your audience by leveraging your network of friends. Ask friends to “Like” you and help spread the word. Be active on your fan page and let people know what you're all about.
Second, get on Twitter. Start following others who are industry colleagues. Choose to follow the people who you are interested in and re-share (re-tweet) their worthwhile information. On a regular basis, post your own original content to promote your products and services.
Third, start a business blog using Google Blogger. Write about what you do and why. You should be publishing content about your business that is objective, timely, and relevant. Posting often using industry key words helps position you as an expert in your field and gets you noticed. Your objective is to improve your ranking on the Google search engine.