Before revision:  According to the Euro-barometer , the percentage of EU citizens employing online social networks to access information, on a daily basis , has increased from 18\% in 2010 to 42\% in 2017. The tight entwinement between social media and the unfolding of political dynamics has motivated the interest of researchers for the analysis of users online behavior - with particular emphasis on topics like group polarization during debates and echo-chambers formation - to unveil the modes and the implications of online interactions for political processes .
After revision:  According to the Euro-barometer , the percentage of EU citizens employing online social networks to access information, on a daily basis , has increased from 18\% in 2010 to 48\% in 2019. The entwinement between social media and the unfolding of political dynamics has motivated the interest of researchers for the analysis of users online behavior - with particular emphasis on topics like group polarization during debates and echo-chambers formation - to unveil the modes and the implications of online interactions for political processes .