Best community websites built with Discourse

Hi! I am about to launch a new community and I was wondering what are the best communities (no specific niche) built with Discourse? I would like to see more of the good ones so I will be able to implement on my own one.

Here are the best I know: https://meta.discourse.org www.growthtalk.co twittercommunity.com http://bbs.boingboing.net/

What others do you know and use?

THANKS