Medium - Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
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.
Anchor CMS - Free and lightweight blogging system
Tumblr - A feature rich and free blog hosting platform offering professional and fully customizable templates, bookmarklets, photos, mobile apps, and social network integration.
Textpattern - Textpattern is an elegant content management system that is free, open source software.