there isn't a big English-speaking forum for SOAD besides this one here on the www.
We usually use the chatbox at the front page of SOADomized to talk about the band and other stuff, but the cbox isn't working right now.
Just join us at http://www.soadomized.com
and till the box is fixed you can go here http://my.cbox.ws/soadomized
Since Facebook, twitter and Instagram are ruling the web, all good forums die - it's a shame.
But nice to have you around brother.