Static Site Generator
Hugo is a Fast and Flexible Static Site Generator
Jekyll is a simple, blog-aware, static site generator.
Middleman is a static site generator using all the shortcuts and tools in modern web development.
PieCrust is a static website generator and flat-file CMS.
Sculpin is a static site generator written in PHP.
Statamic is Comercial FFCMS.
Wintersmith is a flexible, minimalistic, multi-platform static site generator built on top of node.js.