Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Unimus - Unimus is a Network Automation and Configuration management (NCM) solution designed for fast deployment network-wide and ease of use. Unimus does not require learning any abstraction or templating languages, and does not require any coding skills.
Anchor CMS - Free and lightweight blogging system
Oxidized - configuration backup software (IOS, JunOS) - silly attempt at rancid
Textpattern - Textpattern is an elegant content management system that is free, open source software.
RANCID - RANCID - Really Awesome New Cisco confIg Differ.