I've started playing with a Peer to Peer social network called "Vole".
What is Vole?
Vole is a web application for sharing words, pictures and videos with others. Data is distributed peer-to-peer using Bittorrent Sync.
In order to get started, you'll need to follow the instructions on the Vole github.
If you're interested in following me, here is my read-only key: