Generate a full detail guide on using podcast guesting as a marketing strategy. The guide must be a complete playbook. It should include detailed sections on: 1. How to find and vet relevant podcasts in your niche. 2. A template for writing a compelling pitch email to a podcast host. 3. A checklist for preparing for your interview (tech, talking points). 4. A guide to being a memorable and valuable guest. 5. Strategies for promoting your appearance and leveraging the content afterward. Please include a supportive disclaimer.