Due to overwhelming popular demand*, BlogLiterately (version 0.2) has been released on Hackage.
It's a simple tool for uploading posts written in markdown and (optionally) literate Haskell to web logs. It relies heavily on Pandoc for markdown processing, but adds a few twists like syntax highlighting via hscolour. The original version was described here:
The new version (the first version on hackage) has been updated a bit -- to take advantage of Pandoc highlighting extensions and to support blog categories, mainly. The primary documentation is just the haskell package page: