Booklet - Modern forum + directory for professional groups
Kialo - Kialo is the platform for rational debate. Empowering reason through friendly and open discussions.
Flarum - Flarum is the next-generation forum software that makes online discussion fun. It's simple, fast, and free.
Socratrees - Socratrees outlines arguments into intuitive hierarchies of supporting and opposing statements. This design is loosely based on argumentation theory. However, we do not expect you to be familiar with theory in order to start using Socratrees.
I Code Dis - Discover, submit and upvote the best GitHub repos
Acceptify - With acceptify, fast and sustainable decisions can be made for a variety of people.