Geeklog is an open source blog application. Geeklog was initially released in 2000.
Geeklog is a CMS and blog engine with support for comments, trackbacks, multiple syndication formats, spam protection, and all the other vital features of such a system. The core Geeklog distribution can easily be extended by the many community developed plugins and other add-ons to radically alter its functionality. Available plugins include forums, image galleries, and many more.