Datagram protocols are great for peer to peer as well. That way a server just makes introductions and the clients talk directly to each other, allowing it to serve a huge base. Great for chat. That is how BitTorrent efficiently downloads massive files with little server overhead.
Ir nio, you can use DatagramChannels.
This page is posted
Optional Replicator mirror
Your face IP:[220.127.116.11]
You are visitor number|