Poseidon is a simple, minimalistic weblog system written in PHP. It is intended to be small, fast, and elegant. The core software provides the basic functionality for a weblog with content items and user comments, while a fully-featured plugin architecture allows for easy expansion and customization.

Great care has been taken to exercise the best possible coding practices. Simplicity is always favored over cleverness. Poseidon speaks to MySQL on the back end and spits out 100% valid XHTML on the front end, using CSS to handle design and layout. Thus, by spending some time tweaking CSS files, you could easily give your entire Poseidon-based website a radically different design, even going so far as to move individual elements around or eliminate them completely.

The goal of all of this is to give you the simplest possible method for customizing and running a weblog without having to do a lot of work.

Note: Poseidon is no longer being developed. Version 0.6.1 is several years old, and the CVS snapshot of version 1.0 is unfinished. Sorry folks. I recommend you find another blog engine. This stuff is here for historical purposes only.

• FAQ
• Documentation
• Bugs
• Changelog

• PHP 4.3.0 or higher
• MySQL 4.0.2 or higher

• poseidon-full-0.6.1.tar.gz

The latest development version can be found in CVS. Poseidon’s CVS module is named “poseidon”. See Using CVS for detailed instructions. Or, if you’re lazy, just download this snapshot:

• poseidon-cvs-20050829.zip

Copyright © 2003-2005 by Ryan Grove. All rights reserved.
Poseidon is open source software distributed under the terms of the GPL.