Wintersmith's markdown plugin allows you to use markdown as backing for all your sites content, not just blog posts. More than blogging. Write web applications using the latest technologies without having to host your own node.js servers, or use it to increase speeds on large-scale sites.
Wintersmith is the 35th novel in the Discworld series and has a young and still learning witch, Tiffany Aching, as it's central character. Although ostensibly this is a fantasy novel, Pratchett's key strengths as always are ways of making this extraordinary world reflect our own real and far more mundane world.