There are a few about, some based in the USA, which seem to have totally different models to europe! There are a few eastern european forums, but my Russian and Bulgarian etc is not up to much. Most of the other forums in English'ish are full of spam.
There is a new forum just started, which aims to stay spam free, we'll see!
I will list it here if the mods will allow it.
This forum is pretty good, it does have some genuine technicians offering good advice, but we are all actually working most of the time!
Coffee break over, back to work!
Keith