Róisín Nic Dhomhnaill

  New kid on the block Snapchat, the disappearing photo and video app, has stealthily been making friends with that most elusive and difficult-to-reach group of cool kids – the lucrative “millennial” market. Facebook has been the biggest kid in the playground for years now but the average Snapchat user is 18 years old. That’s a whopping 22 years younger…