Nucleus

Nucleus is a tool to maintain one or more weblogs. It\'s written in PHP4 and requires a MySQL database. Features: one or more weblogs, multiple authors, categories, commenting system and karma votes, fully tweakable through skins and templates, plugin system, archives, search, file upload, drafts, IP banning, XML-RPC server implementation of the Blogger API/metaWeblog API, easy installation, RSS syndication, backup/restore, and more.