Redefining Newsworthiness: The Impact of Social Media on Mainstream Media Practices

For decades, a handful of editors in newsrooms decided what millions of people would read, watch, or hear. That gatekeeping model worked in a world of limited media channels. But social media has fundamentally disrupted this process. Today, when someone shares a post, retweets a video, or comments on a breaking story, they are participating in a collective act of editorial judgment – deciding what deserves public attention. This shift has forced mainstream media to rethink its core assumptions about what makes something “newsworthy.”

How social media redefined newsworthiness 🔗

Traditional newsworthiness was determined by professional journalists using established criteria – proximity, timeliness, impact, prominence, and conflict. An editor’s desk was the final checkpoint before any story reached the public. Social media changed that equation entirely.

A 2025 systematic review published in Frontiers in Communication found that social media algorithms, designed primarily for engagement, rarely prioritise content based on journalistic significance. Instead, they amplify material that triggers reactions – likes, shares, and comments. The result is that newsworthiness is increasingly being replaced by what researchers call “shareworthiness” – a metric driven by virality, emotional resonance, and visibility rather than editorial judgment.

This doesn’t mean traditional news values have become irrelevant. It means they now compete with a parallel system of values rooted in audience behaviour. A story about a policy change affecting millions might get less traction than a 30-second clip of an unexpected event, simply because the clip is more emotionally engaging and easier to share.

When viral content leads the news cycle 🔗

One of the most visible effects of news sharing on social media is the reversal of the traditional news cycle. In the past, an event would happen, a newsroom would be alerted, reporters would be dispatched, and a story would be published hours later. Now, the first reports often come from eyewitnesses posting shaky smartphone footage on platforms like X (formerly Twitter), Instagram, or TikTok – long before any professional crew arrives on scene.

This rise of citizen journalism has become a defining feature of modern news. During events like the 2009 Iranian election protests or the Occupy Wall Street movement in 2011, citizen journalists documented what was happening and shared it on social media, often when mainstream media was either absent or slow to react. State-controlled media tried to suppress information during the Iran protests, but real-time posts on Twitter and YouTube brought global attention to the unrest.

These patterns persist today. Whether it’s a natural disaster, a protest, or a local incident, the first images and accounts tend to surface on social platforms. Mainstream media then picks up these stories – sometimes hours later – verifies them, adds context, and broadcasts them to a wider audience. The flow of news has, in many cases, reversed.

The agenda loop: audiences shaping the news 🔗

This reversal has given rise to what communication researchers describe as the “agenda loop.” A 2024 study published in Communication Studies found that user-generated content on social media now feeds back into the agendas of mainstream media outlets. In other words, citizens are no longer just consuming news – they are helping set the media agenda by making certain topics trend and forcing newsrooms to cover them.

This is a significant departure from the traditional agenda-setting theory, first proposed by Maxwell McCombs and Donald Shaw in 1972, which argued that media tells people what to think about by choosing which stories to highlight. Now, the public is telling the media what to cover. It’s a two-way street.

The engagement trap: when popularity overrides quality 🔗

While social media has democratised who gets to participate in news, it has also introduced a serious tension between journalistic quality and audience engagement.

Research from the University of Florida College of Journalism and Communications examined how news stories perform on Facebook when stripped of branding and visual identifiers. The study, involving over 5,800 consumers and 700 journalists, found that mass appeal overwhelmingly drives engagement on social platforms. Stories reflecting traditional journalistic values – accuracy, factual depth, public importance – did not perform as well in terms of likes, shares, and comments.

Even more striking, the study found that the more widely shared a news story was on Facebook, the less accurate it tended to be. This creates a troubling feedback loop: content creators are incentivised to prioritise broad appeal over factual reporting because that is what platforms reward.

How newsrooms are adapting 🔗

Mainstream media has not been passive in the face of these changes. Many news organisations have restructured their operations to monitor social media trends in real time. According to research published by Oxford Academic, newsrooms across the UK and many other countries have normalised using social media as source material. Community editors have been rebranded as social media editors, and new strategies have emerged for distributing content through social networks and using audience data to drive traffic back to their own websites.

The practice of journalism has become more open and iterative as a result. Live blogs that combine verified facts with eyewitness accounts and audience opinions from platforms like Twitter and Facebook are one example. Some outlets have also launched platforms inviting citizen contributions – CNN’s iReport was an early example – where user-submitted content is vetted and, if credible, integrated into mainstream reporting.

This model of collaborative journalism recognises that professional reporters and citizen contributors can complement each other. Citizens offer immediacy and ground-level perspectives; professional journalists provide verification, context, and editorial structure.

Social media as an attention driver, not just a competitor 🔗

There’s a common assumption that social media and traditional media are locked in a zero-sum battle for audiences. But research published in the European Journal of Information Systems challenges this view. The study found that social media serves as an attention driver – when a topic gains traction on social platforms, it tends to increase viewership of related articles on traditional news websites as well.

In this sense, social media doesn’t just steal audiences from mainstream media. It can also direct attention toward topics, which then drives people to seek out more in-depth coverage from established outlets. The relationship is more symbiotic than purely competitive.

However, research from CEPR (Centre for Economic Policy Research), based on nearly two billion tweets, found that Twitter does meaningfully set the news agenda for mainstream publishers. But here’s the catch – stories that are popular on Twitter don’t necessarily get more views when mainstream media covers them. This suggests that journalists’ reliance on social media trends may sometimes distort their editorial choices, leading them to cover what is buzzing online rather than what their audience actually wants to read.

The misinformation challenge 🔗

No discussion of social media’s impact on mainstream journalism is complete without addressing misinformation. The speed and scale at which false or misleading content spreads on social platforms is one of the biggest challenges facing journalism today.

Researchers at MIT have found that false news travels significantly faster than accurate reporting on social media. According to U.S. PIRG Education Fund, a 2024 Indiana University study found that a tiny fraction – just 0.25% – of users on X were responsible for up to 78% of low-credibility content on the platform. Some of these accounts were verified, lending misinformation an appearance of legitimacy.

The problem is amplified by platform algorithms. These systems are designed to maximise engagement, not accuracy. Sensational, emotionally charged, or controversial content performs better in algorithmic rankings, which means misinformation often gets more visibility than careful, nuanced reporting.

Negativity bias in news sharing 🔗

A study published in Scientific Reports analysed over 95,000 articles from US and UK news sites alongside more than 579 million social media posts. The findings showed that users were nearly twice as likely to share links to negative news stories compared to positive ones. For political content, this negativity bias was even stronger when articles referenced opposing political groups.

This creates a structural incentive for both citizen journalists and professional outlets to lean into negativity – because that is what gets shared, and sharing is what drives visibility on social platforms.

The end of one-way news consumption 🔗

Perhaps the most fundamental shift is the move from a linear model of news consumption to a multi-directional network. In the traditional model, a news anchor broadcasts to millions. The audience’s only option to respond was to write a letter to the editor – a slow, filtered process. Today, audiences respond in real time through comments, shares, quote tweets, and their own original posts. They amplify, critique, add context, and sometimes even correct the original reporting.

This shift means mainstream media still holds significant agenda-setting power, but that power is now checked and balanced by the collective voice of the public. Newsrooms can no longer afford to ignore what millions of people are deeming important through their online behaviour.

Multiple viewpoints: a more nuanced understanding of events 🔗

One often-overlooked benefit of social media’s influence on news is the diversity of perspectives it introduces. When a major event happens, it’s no longer filtered through a single editorial lens. Instead, first-hand accounts from eyewitnesses, expert analysis from academics posting on X or LinkedIn, on-the-ground reports from citizen journalists, and official statements from institutions all circulate simultaneously.

This multiplicity of sources encourages a more nuanced understanding of events. A viewer can compare how a political development is covered by different outlets and commentators, weigh contrasting analyses, and form a more informed opinion – provided they apply critical thinking.

Of course, this cuts both ways. The same environment that enables diverse perspectives also makes it easier for misinformation and partisan framing to flourish. Media literacy – the ability to evaluate sources, identify bias, and distinguish fact from opinion – has never been more important.

What this means for the future of journalism 🔗

The relationship between social media and mainstream journalism is not a story of replacement. It’s a story of transformation. Traditional media hasn’t lost its relevance, but it has lost its monopoly over production and distribution. News organisations that adapt – by monitoring social trends, collaborating with citizen journalists, investing in verification tools, and understanding audience behaviour – will remain essential in the information ecosystem.

At the same time, the responsibility is shared. Every time someone shares a news story, they are participating in the editorial process. That act of sharing carries weight – it signals what matters and reaches networks that even the largest news outlets cannot access on their own.

The gatekeepers haven’t disappeared. There are simply far more of them now, and they include you.

What do you think? How much of what you consider “news” today is shaped by what your social media feed shows you rather than what professional editors have chosen? And as the line between news consumer and news distributor continues to blur, how do you decide what’s worth sharing?

References

1. https://www.frontiersin.org/journals/communication/articles/10.3389/fcomm.2025.1667471/full
2. https://www.highbrowmagazine.com/24820-rise-citizen-journalism-offers-significant-benefits-and-challenges
3. https://www.tandfonline.com/doi/full/10.1080/10510974.2024.2383342
4. https://www.jou.ufl.edu/insights/the-like-economy-how-social-media-reshapes-news-priorities/
5. https://academic.oup.com/book/5264/chapter/147981871
6. https://www.tandfonline.com/doi/full/10.1080/0960085X.2022.2103046
7. https://cepr.org/voxeu/columns/social-media-influences-mainstream-media
8. https://pirg.org/edfund/articles/misinformation-on-social-media/
9. https://www.nature.com/articles/s41598-024-71263-z