Publish It Yourself is a self-managed CMS. It is designed to create autonomous communities where users can directly create and manage content.
It is a mix between blogs and blogs platforms, digg-likes and open publishing websites such as the Indymedia network.
It allows to publish and promote rich text articles and news. It includes many features: tagging with triple tags support, comments, spam protection, themes, interface translation, registration system, peronnal users pages, Atom feeds, microformats, and more! Every pages are optimized for search engines, including expressives URLs and uniques titles.
This software is still in an early stage of development and probably has many bugs, please report them! It is a free software covered by the GNU Affero General Public License version 3.
You can try it online (database cleared periodically) or download it on GitHub. Contributions are welcome (see the TODO file inside the project root directory) and can be submitted directly on GitHub.