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Global media landscape has undergone structural shift in recent years as audience trust in legacy news institutions keeps declining and becoming more fragmented across platforms. In the heart of all this upheaval, long-form podcasting is now more than a secondary platform for entertainment; it has become a primary source of news for an expanding and more diverse audience. Long-form audio journalism, characterized by longer durations, more spontaneous conversations, and in-depth discussions of topics, is the antithesis of the short, sensational, and algorithmically paced world of regular audio and digital news. With the maturation of audio streaming infrastructure and the growing consumption of digital content, the podcast medium has evolved from being an experimental and niche content to becoming a journalistic ecosystem that sets public agendas and modifies the terms of the democratic discourse.

A contemporary hot topic in the scholarship is how long-form podcasts generate cognitive authority and trust in the media. For a long time, standard journalism theory has supported detached objectivity, gatekeeping, and standardized editorial control as the basis of news credibility. On the other hand, a growing body of literature indicates that the communicative architecture of podcasting creates an unprecedented “parasocial intimacy” between hosts and listeners. The authenticity of unscripted long-form dialogue and the immersive headphone experience can create affective relationships that many people feel trump the reliability of news anchors and other institutional sources. Instead of relying on strictly enforced journalistic filters, audiences increasingly grant epistemic authority to independent podcasters and niche specialists who offer information through personal transparency, vulnerability, and sustained intellectual engagement.

The success of long-form news podcasts has important socio-political consequences. These podcasts are an equal opportunity platform for democratic deliberation. In addition, they can also serve as a platform for echo chambers. Within the field of media studies, supporters hold the belief that longer formats open up expertise, allowing for more sophisticated but still vulnerable analyses of complex policy, science, and geo-political issues that are rendered flat by sound-bite formats. On the other hand, critical scholars are receiving increasing concerns about the lack of formal fact-checking and accountability in the podcasting. This absence of safeguards facilitates unchecked escalation of political polarization, epistemic bubbles, and conspiratorial narratives especially when charismatic hosts exploit listener loyalty to propagate unverified claims.

This literature review critically synthesizes a variety of research, discussion and writing that assesses and comments upon the emergence of long-form podcasts as a news medium. In particular, the paper studies three issues: the structural constraints of legacy media that enabled this shift; the communicative mechanics of audio intimacy and audience retention; and the consequences for journalism, public knowledge and democratic participation, in a growing audio public sphere.

The rise of long-form podcasts as a primary source of news reflects significant shifts in media consumption habits, audience expectations, and the broader information ecosystem. Defined by their extended runtimes, in-depth exploration of themes, and often conversational or unscripted styles, long-form podcasts challenge traditional models of news delivery characterized by brevity, producer-centric authority, and algorithmic curation. As audiences increasingly fragment across digital platforms and trust in legacy media continues to erode, long-form podcasts are carving out an influential niche, not just as a form of entertainment, but as a significant conduit for news and current events.

A critical area of study concerns how long-form podcasts cultivate media trust and cognitive authority. Podcasts’ intimate and immersive audio environment, particularly when experienced through headphones, can foster parasocial intimacy and a heightened sense of authenticity and relatability compared with conventional media. The spontaneous, extended dialogues typical of the format lend hosts an air of transparency and vulnerability. These qualities resonate with listeners, often endowing independent podcasters and niche experts with epistemic authority that can rival or even surpass that of traditional news institutions anchored by perceived objectivity, gatekeeping, and standardized oversight.

At the same time, the ascendancy of long-form podcasts raises critical questions about journalistic standards, fact-checking, and accountability. Without institutional editorial structures, podcasts can inadvertently or deliberately amplify unverified claims, conspiracy theories, and polarizing viewpoints. This dynamic may deepen epistemic bubbles and political fragmentation, challenging the democratic potential of podcasts as platforms for diverse and substantive public discourse.

In this context, this literature review critically examines the factors underpinning the rise of long-form podcasts as a source of news. It explores the structural and perceptual weaknesses of traditional media that have created space for podcasts, and analyzes how the distinctive communicative features of long-form audio contribute to audience trust and retention. Furthermore, the review assesses the implications of podcast growth for media authority, democratic discourse, and public knowledge, recognizing podcasts as both a democratizing force and a potential vector for disinformation and ideological insularity. Ultimately, this synthesis illuminates how the ascendancy of long-form podcasts is reconfiguring power relations in journalism and reshaping the dynamics of the contemporary information landscape.