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

Telegra.ph - Post articles online without an account at Telegram's anonymous publishing platform.

Anchor CMS - Free and lightweight blogging system

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.