Before revision:  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:  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 .