An After-Action Report or "AAR" is a game report.
Plenty of room for them on this wiki. Your user blog could be a good place, getting linked on the home page for a while. So can the comments section of a scenario or map key page where appropriate. An example is at Resurrection of Holland 1815. Add [[Category:Game reports]] somewhere on the page. Then you and other players can add comments and can compare strategies and results.