Check out this Forbes article on 15 non-traditional ways to market your business… I really like number 3:
“Podcasting is a powerful medium that continues to grow. Podcasts are becoming increasingly influential to consumers and are an effective way to showcase your organization as a subject-matter expert—a thought leader—in your industry as well as promote who you are, what you do and how you do it. Society likes things to be easy and convenient. For many, listening to a podcast is a great way to consume content.”