Zimplit CMS - The easiest Open Source Content Management System for small web- and minisites

Indexhibit - Indexhibit is a portfolio cms for everybody.

BaferCMS - The fastest and the easiest way to edit content "in-place", while looking at the website.

UGAL - UGAL is a web-based application to create, maintain and host dynamic, next generation websites for small businesses.

Nibbleblog - Nibbleblog is a powerful engine for creating blogs, all you need is PHP to work.

Drupal - Drupal - the leading open-source CMS for ambitious digital experiences that reach your audience across multiple channels. Because we all have different needs, Drupal allows you to create a unique space in a world of cookie-cutter solutions.