Collaborative writing websites
- Drop.Org - A news and discussion website, and the showcase site for the Drupal engine.
- Everything2 - user-written encyclopedia used as a casual reference
- Indymedia - A network of collectively run media outlets for the creation of radical, accurate, and passionate tellings of the truth. Responsible for a number of radio shows and newspapers throughout the world.
- infoAnarchy - A news and discussion website, currently using Scoop but transforming it, and the ideas behind several collaborative journalism systems and several wiki engines into a new engine.
- Kuro5hin - A news and discussion website, and the showcase site for the Scoop engine.
- Wikipedia - Using the wiki concept for a collaboratively edited encyclopedia.
- Wikinfo - http://www.wikinfo.org/
- SourceryForge - http://www.sourceryforge.org/
- PlasticsWiki - http://plastics.inwiki.org/