Tribe.so - Tribe is a white-label platform, empowering the new generation of online communities.
Stack Overflow - Community-based Q&A part of the Stack Exchange platform.
Higher Logic - Private, secure online communities that stimulate conversation and ignite engagement.
The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.
Askalot - Askalot is a next generation CQA (Community Question and Answer) system.