Discourse
Discourse is a free and open-source Internet forum software. Features include support for categorization and tagging of discussions, configurable access control as well as usability improvements recently popularized by large social networks, such as live updates, expanding link previews, infinite scrolling, and real-time notifications.
A platform for community discussion
It seems to be the most used open source forum at the moment. It requires a fairly high-performance server as it requires a lot of resources.
You can use it as a:
- discussion forum
- mailing list
- long-form chat room
It is fully customizable and it's possibile to integrate your services. It has an automatic trust system that helps in managing conversations.
