Why should I use Yammer over email?

This was on the Yammer YCN network a few months back but I’ve only seen it now. Several experts answering a common question about using Yammer. And love this quote:

“Email is where knowledge goes to die”
– Bill French about.me/bill.french

A hand-made film where real members of the Yammer community answer the question: “Why should I use Yammer over email? My whole team uses email.”

Yammer v Email! from Digital Storytellers on Vimeo.