Hotaru CMS is an open source, plugin-powered content management system. Think of it as "Wordpress without blogging". If Wordpress didn't do blogging by itself, you'd need plugins to do it for you. And if you had to make plugins, you wouldn't be limited to just blogging. You could make plugins for any kind of site, whether a blog, a social network, an online shop, etc. That's Hotaru CMS, a framework for making websites customized to your needs. As an example, check out the demo. It showcases a Digg clone made with Hotaru plugins.  

Learn more, please visit http://hotarucms.org/