Are there any other good, active language forums out there besides this one? I know of WordReference.com and some Japanese language forums, but honestly that's about it...

I am particularly looking for forums that are large and quite active, and maybe have some forums specializing in the languages I speak/read (English, Turkish, Arabic, Russian, and/or Latin)... if y'all know of any, send them my way.

If you're not bothered by LiveJournal, the linguaphiles community is pretty large and active:
http://community.livejournal.com/linguaphiles/