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.
OverBlog - OverBlog is a blogging platform, active and evolving.
Anchor CMS - Free and lightweight blogging system
Pressmo - Page Flip software that allow You to convert PDF files into digital magazines, page flip books, digital brochures, interactive catalogs and photo albums. Off-line (USB or CD) and on-line.
Textpattern - Textpattern is an elegant content management system that is free, open source software.