Users polarization on Facebook and Youtube

Alessandro Bessi, Fabiana Zollo, Michela Del Vicario, Michelangelo Puliga, Antonio Scala, Guido Caldarelli, Brian Uzzi, Walter Quattrociocchi

Research output: Contribution to journalArticlepeer-review

139 Scopus citations


Users online tend to select information that support and adhere their beliefs, and to form polarized groups sharing the same view - e.g. echo chambers. Algorithms for content promotion may favour this phenomenon, by accounting for users preferences and thus limiting the exposure to unsolicited contents. To shade light on this question, we perform a comparative study on how same contents (videos) are consumed on different online social media - i.e. Facebook and YouTube - over a sample of 12M of users. Our findings show that content drives the emergence of echo chambers on both platforms. Moreover, we show that the users' commenting patterns are accurate predictors for the formation of echo-chambers.

Original languageEnglish (US)
Article numbere0159641
JournalPloS one
Issue number8
StatePublished - Aug 2016

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • General
  • Biochemistry, Genetics and Molecular Biology(all)


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