Jtan was the first online resource that I was pointed to when I bought a Vincent. There were many big beasts on the list and on the whole they were helpful and supportive, that said it can be a little rough on the know nothing new boys, but that is probably the way of old men to youth everywhere.
It can and occasionally does degenerate into a bar room brawl at which point Doug turns it off for a week or so, when it reappears the miscreants all apologise and promise to be on their best behaviour.
When I was working in America, I posted to ask if any Jtanners live near by, Doug did and came over for a drink one evening, it was only a 2 hour trip each way.