The following post describes how a local mesh net, combined with P2P protocols, can be creatively and securely used as an off-grid communications network for a variety of purposes.
As for events, I am continuously tagging everything event-related that is posted to Edgeryders with event, so you can find it all here: Topics tagged event
People can subscribe to that tag to be notified by e-mail about new Edgeryders-related events. Sadly, few if any people know that this is possible, so we might want to spread that information around as well …
And as for discussions: it’s a bit specialized, but we had very productive discussion here with @felix.wolfsteller and @hugi, creating what is (I think) the world’s best list of open source scheduling and booking applications by now: