This page lists all the available training articles at sites that deal with combat specific information.
PC Aviator has some examples of it's excellent training articles from it's hardcopy magazine, Computer Pilot, in Adobe Acrobat format, at the magazine's web site (you can download Adobe Acrobat at the same place). One air combat article is Aircombat School.
Phil Knapton's Homepage has some interesting warplay tutorials:
The
VFA-13 Shadow Riders
are a Macintoch-based flight simulator group.
The combat flight simulation Falcon 4.0 has some good articles and lessons in the art of fighter combat.
The Combat Flight Centre is dedicated to Microsoft's Combat Flight Simulator, and has some small articles on Combat Training. These are not so much related to training as to set-ups and how-tos, but the Add-on FAQ is quite useful: