Simple, fast and free. We empower people and companies to connect intellectually and emotionally through online communities, by providing a technically excellent, open and extensible discussion platform.

Discourse is an open source Internet forum and mailing list management software application founded in 2013 by Jeff Atwood, Robin Ward, and Sam Saffron.

Helping people self-rule their career anywhere by the power of universal work solutions. Today, over 10.000 organizations and 50.000 talents master working compatibly and in compliance anywhere with Ruul’s modern solutions made for the remote reality.

Reddit is a network of communities based on people's interests. Find communities you're interested in, and become part of an online community!

NodeBB is modern forum software that combines all the communication tools of today's mobile and social web with the deep community engagement of classic Internet bulletin boards. Built on the high-performance Node.js platform, NodeBB can scale to power the largest and most active brand communities.

Acquired by Service Now.