Podcasts are audio files that can be downloaded and listened to on various devices. They allow niche audiences to access specific content of interest on-demand. While not as mainstream as visual media, podcasts appeal to listeners by feeling like an intimate conversation with a friend. They cover a wide variety of topics and can be used for entertainment or education. Podcasts are accessible for both listeners and creators, allowing regular people to share content without large budgets. Their freedom from censorship regulations enables innovative content.