The enduring economic crisis, austerity measures and corruption scandals have created a favourable environment for the advent of new political actors all over Europe. During the last general elections (February 2013), Italy was shocked by the inexorable rise of the Five Star Movement. Beppe Grillo's creature upset the political system, occupying portions of the public sphere that had been ignored (the web) or gradually abandoned by traditional political parties (the squares). Its unusual campaigning style, its internet-based organisational structure, its atypical political positioning (beyond left and right), and its oversimplification of complex problems all help to explain its electoral performance, and distinguish it from similar anti-establishment parties that have emerged in Europe over the past decade.
Keywords: Five Star Movement, anti-establishment, window of opportunity, internal democracy, internet politics