Back in the 80's and 90's, when RPG's ruled the world, it seemed like every publisher and their mother was putting out an RPG magazine.
TSR had Dragon and Dungeon. Games Workshop had White Dwarf. SJG had The Space Gamer and the Fantasy Gamer. Avalon Hill had Heroes (or some such). Different Worlds changed hands a few times if I recall. Shadis was a breath of fresh air that spawned KotDT. Journal of the Traveler Aids Society was there for the Traveller players. I'm sure I'm missing one or two.
All of the above are gone (White Dwarf hasn't supported RPG's in decades and Dragon and Dungeon haven't been in a print format in years).
So, the gaming magazine is effectively dead, replaces in current days by gaming 'zine - self published magazines with little corporate influence behind them. Published less for profit then for love of the game, or at least, that's how I see it.
What gaming magazines did you read back in the day and what gaming 'zines do you read these days?