Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.

Medium - Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.

Textpattern - Textpattern is an elegant content management system that is free, open source software.

Ghost - Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.

TYPO3 - TYPO3.com - Infos, SLAs, Extended Support Versions and more

Blogger - Publish your passions, your way. Create a unique and beautiful blog. It’s easy and free.