Fast Company has an article entitled The Blog of Things To Come which is all about Joi's online community.
I participate in this community via Joi's irc channel. It's a great place to hang out for lots of reasons. The biggest one is the people. Conversations like the one I last night are commonplace. Their are lots of interesting people who come from all different aspects of technology and from all over the world. We have people who are students, people who are CxO level people, people who are tech employees like me, etc. The great part is all of these different people interact like they are all on the same level. I can jump in to the channel, ask a question, get answers from all sorts of people who just want to help out. It's just a really great community to be a part of and I am glad that I am.
