bibisco - bibisco is a novel writing software.
Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
Anchor CMS - Free and lightweight blogging system
Gingko - Write and organize your ideas in Gingko tree documents.
Textpattern - Textpattern is an elegant content management system that is free, open source software.