From Adobe Marketing Minutes:

In the latest Marketing Minutes video, we sat down with Viacom’s VP of Research, Christian Kurz, to talk about Millennials (age 9 -30). It turns out Millennials around the world have a lot more in common than any previous generation – “They are the first truly global generation,” Kurz said. Millennials don’t have Facebook friends, they have friends and they use Facebook as a tool to communicate with them globally.

Here’s the article on the adobe website