Any websites as good as PPRuNe for other countries?
Does anyone know of a pilots' website for North America comparable to PPRuNe? I'd like to post my aurora survey there. Or for, say, Scandinavia or Russia? English-language would be preferable, of course; can be civilian or military as long as open to the public.
The only drawback of PPRuNe is that it's UK-oriented, so the percentage of pilots from other countries who are members may be relatively low.
I've searched on Google and the best I've been able to find is, for the USA, USaviation.com, but its traffic appears to be only a fraction of PPRuNe's.