[olalonde]

I'd argue that there is no Bitcoin community to speak of anymore (just like there isn't an "internet community"). The technology evolved a bit but it is still essentially the same.

[earenndil]

https://bitcointalk.org/ is pretty major. There's also a large chinese crypto website the name of which temporarily escapes me.

[Blaiz0r]

See https://www.scuttlebutt.nz/