Podcasting is a digital audio medium characterized by episodic content distributed via syndication feeds (typically RSS), enabling on-demand consumption and subscription. As a research concept, it encompasses the socio-technical processes of producing, distributing, and consuming audio content within this format, investigating its evolving technological infrastructure, diverse content forms, audience engagement patterns, economic models, and socio-cultural impacts. Its significance stems from its role in transforming media landscapes, facilitating niche communities, enabling alternative forms of discourse, and serving as a prominent example of distributed, user-driven digital media.