David A. Fields shares a few key tips on promoting your services through a podcast in the best possible way. Podcasts are (relatively) easy to produce, the barrier to entry is virtually zero, and they’ve become more popular than cabbage patch dolls in the 1980s. Should your consulting firm have a podcast? Probably. Can you leverage the podcast movement to your consulting firm’s advantage? Absolutely. My consulting firm can trace a substantial portion of our revenues to podcasts. Your…