WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.

Discourse - Discourse is an open source discussion platform built for the next decade of the Internet.

DEV.to - Where software engineers connect, build their resumes, and grow.

Flatboard - A Simple, Lightweight, Modern and Fast flat-file forum system written in PHP and Json.

Drupal - Drupal - the leading open-source CMS for ambitious digital experiences that reach your audience across multiple channels. Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions.

ZeroTalk - Forum(s) for the Distributed network Zeronet