Tutti a casa - Power to the People?

In many Western countries, trust between the people and conventional political parties is at a low point while populist movements are on the rise. In Italy, protest party Movimento 5 Stelle, founded by popular comedian Beppe Grillo, vows to send all politicians home and bring power to the people. They win a stunning 25% votes, becoming the most-voted single party in Italy, but what happens when ideals meet parliamentary reality? Can one be uncompromising and effective at the same time? Are internet referendums direct democracy or faceless mob rule?