Contribute code to P2PU
Introduce yourself on our mailing list: p2pu-dev@lists.p2pu.org
Chat with us: #p2pu-dev on irc.freenode.net
Read about how to get started: http://github.com/p2pu/lernanta/wiki
Find easy contributions: http://p2pu.lighthouseapp.com/projects/71002-lernanta/tickets/bins/...
See stats about the project activity at: http://www.ohloh.net/p/lernanta