As a freelance business, it's always important to be able to pitch your services to potential clients in an effective and professional manner. Over at the great Freelance Switch blog, they have a great top 10 list for pitching your services. You can check it out HERE.
Beyond that, it can be effective to advertise your services over on Craig's List. We were able to get a number of jobs by just doing a simple ad on that site. They have regional versions of the site so that you can target the area that is most relevant to your business.
Check them out HERE.