Social media has become essential tool to many of thousands of migrants who are trying to make the perilous journey into Europe.

VOICED: Migrants Using Social Networking to Travel to Europe Showing Exterior shots migrants at refugee camp, Exterior shots Zaher, Syrian Refugee using mobile phone, Refugees at camp using phones, Exterior interview Assad, Syrian Refugee using Facebook to plan route, Exterior shots migrants walking along train tracks on route to Western and Northern Europe *** This clip beginns with black and contains black holes - third party copyrights *** on August 29, 2015 in Serbia.