tumblelog is a simple static site generator with the focus on generating a
rich and complete tumblelog or micro blog with various ways to navigate to
archived blog posts. tumblelog comes with several styles and it's easy to
either modify an existing one or create your own.
The input is a single "Markdown" file divided into pages by starting a line with a date followed by a title. Each date page can further be split up into multiple articles using a single % on a line by itself.
Parameters to control the blog are given via command line arguments. The program creates the blog HTML5 pages and both a JSON and RSS feed.
The home page has extensive documentation on how to get started and how to have your own blog or site up in a very short time.
Find more static site generators.