awmace5 : although a multiplayer tutorial would certainly be appreciated, I believe that a good mastery of c2's concepts and optimization is required first. Multiplayer is very technical, and puts heavy constraints on one's code and design. There are also 4 detailed multiplayer tutorialsalready written in by Ashley. He has covered the essential networking concepts to grasp to build more complex games and apps. Network is finally something I have very little knowledge of: as a designer, I have only worked on single player games. I wouldn't want to share so-so or wrong information about technical concepts I don't quite get myself.
So anyway, I'm working something out on AI, project management... compiling a few tricks from fellow professional developers as well. And as always, I'm open for requests !
Cheers,
Nathan.