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[Pocus]

specifically, when 'we' (understand the players of doms I) speak of 'The' newsgroup, we speak of

comp.sys.ibm.pc.games.strategic

Why do I'm saying that? Because this newsgroup is not specific to dominions, and speak of any game which can be qualified to be a strategy game (RTS included). You will find many people interested in discussing with you of games like dominions, but also in UFO aftermath, Galactic civ, C&C generals, etc.
Many players (including me) didnt knew dominions before reading discussions about the game in the NG. Then you are intrigued, try the demo, and the deadly addictive process begin.