According to a BBC article titled 'Israel steps up "psy-ops" in Lebanon' some people living in southern Lebanon have received voicemail from Israel, suggesting that they leave the area:
"From mass targeting of mobile phones with voice and text messages to old-fashioned radio broadcasts warning of imminent attacks, Israel is deploying a range of old and new technologies in Lebanon as part of the psychological operations ("psyops") campaign supplementing its military attacks.
Israeli leaflet says: "People of Lebanon! Understand! A face like a brother, a back of the head like a snake." Israel dropped leaflets over Beirut and elsewhere in Lebanon. According to US and UK media outlets, Israel has reactivated a radio station to broadcast messages urging residents of southern Lebanon to evacuate the region. Some reports have named the station as the Voice of the South."
The opposing 'smart mobs' - 'psy-mobs' more like...