photo © 2008 Frits Ahlefeldt-Laurvig | more info (via: Wylio)
Phile is a like a mini social network which you can use to share interests and details about your favourite topics. In some ways, it works a bit like a wiki or listing of information, as information is stored and can be revisted and added to.
With a simple click you can start a group and share that site with whoever you want to.
I enclose a short video by one of the co-founders, which gives you an overview of how to use Phile:
What groups will you be creating with Phile?