The article deals with the impact of the Arab uprisings on Islamism in its various forms (from the mainstream movements to the radical ones). It specifically addresses the issues revolving around the influence of politicization on Islamist movements and it describes the recent evolution of Salafi and Jihadi trends (especially as influenced by their participation in everyday politics and the war in Syria). The author argues that various Islamist tendencies have experienced significant levels of transformation in recent years, thus necessitating a reshaping of our understanding of this phenomenon., Ondřej Beránek., and Obsahuje bibliografii