Advisers who have a plan for the topics they want to discuss and what format they will discuss them in (whether it's Twitter, podcasts or video) are better positioned to develop their credibility and their overall marketing strategy.
If you're already a fan of talk radio or you're curious about what kinds of programs are available in free podcasts but don't know where to begin, Stitcher's Smart Station will almost surely surface several shows that will pique your interest.