title: socket.io private message
body: <p>I've beeen scouring the Net with no luck. I'm trying to figure out how to send a private message from one user to another. There are lots of snippets, but I'm not sure about the client/server interaction. If I have the ID of the socket I want to send to, how do I send it to the server, and how do I ensure the server only sends the message to that one receiver socket?</p>
  
  <p>Is there a tutorial or walkthrough that anyone knows of?</p>