Looking for networking guide

FROM : Henry Skelton
DATE : Sat Aug 12 22:16:25 2006

I am looking for a good guide to networking with bonjour. Apple's 
guide is sufficient for seeing how to publish, and find services, but 
I don't fully understand how they are implemented (i.e. how the 
computers "talk" to each other). Also, Apple's guide doesn't say 
anything about implementing my own kind of service. The program I am 
using this with is Cocoa.