well - I'll admit, as far as car forums go, CEG is WELL beyond most 'enhusiast' sites for cars that aren't mainstream performance cars... Mustangs, F-bodys, Vettes, Supras, yah - they have their sites...
so far, I've found a couple decent sites but they definitely need more time behind them (like CEG) to become a world class forum like this one!
http://www.mazda6club.com {Mazda6 Club) duh...
http://www.mazdamp3.com (Mazda Forums)
http://forums.mazdaworld.org (probably the largest site so far)
I really hope the online community becomes as well versed as you guys here @ CEG... only time will tell.