Nucleus lets you set up one or more weblogs. You can show the contents of multiple weblogs on the same page. Each blog has its own team of authors. Within a weblog, you can set up one or more categories. Nucleus provides a built-in Commenting System, so there's no need for external commenting tools. A karma-voting system is also provided.

The way your Nucleus site looks is fully tweakable through skins and templates, and multiple CSS files. Next to that, the language used by the Nucleus admin area can easily be changed through language-files. Archives for your weblogs are automatically managed by Nucleus, and a search function is provided to look up old items. Nucleus also features highlighting search terms, both in articles, and in comments!

• Nucleus provides RSS and Atom feeds.
• Veru easy to use file system with upload.
• Comment administration.
• Simple click to create a backup version of the database contents.

You can visit their website here