There have been growing concerns regarding the potential impact of social media on
democracy and public debate. While some theorists have claimed that ICTs and social …

The Internet has evolved into a ubiquitous and indispensable digital environment in which
people communicate, seek information, and make decisions. Despite offering various …

Social media may limit the exposure to diverse perspectives and favor the formation of
groups of like-minded users framing and reinforcing a shared narrative, that is, echo …

Online media is important for society in informing and shaping opinions, hence raising the
question of what drives online news consumption. Here we analyse the causal effect of …

We address the diffusion of information about the COVID-19 with a massive data analysis on
Twitter, Instagram, YouTube, Reddit and Gab. We analyze engagement and interest in the …

Echo chambers and filter bubbles are potent metaphors that encapsulate widespread public
fear that the use of social media may limit the information that users encounter or consume …

The dynamics and influence of fake news on Twitter during the 2016 US presidential
election remains to be clarified. Here, we use a dataset of 171 million tweets in the five …

This paper investigates the link between social media and hate crime. We show that
antirefugee sentiment on Facebook predicts crimes against refugees in otherwise similar …

Background Vaccine hesitancy has been recognized as a major global health threat. Having
access to any type of information in social media has been suggested as a potential …

We study how social media affects election outcomes in the United States. We use variation
in the number of Twitter users across counties induced by early adopters at the 2007 South …