I'm still looking for more resources, but one that had a lot of general networking tips + solutions was the book:
"ActionScript for Multiplayer Games and Virtual Worlds":
http://www.amazon.com/ActionScript-Multiplayer-Games-Virtual-Worlds/dp/0321643364/ref=sr_1_11?ie=UTF8&qid=1359883942&sr=8-11&keywords=multiplayer+flash.
They use their own socket server, but they go through some stuff on syncing the client/server, interpolation, lots of stuff that helped when I was working with kyronet. More concepts, and things to think about when trying to work on multiplayer programming.