Hollow is flat file blog script powered by PHPixie.
To create a blogpost, just add a .md file to the /posts folder. To add a post category, just create a subfolder inside /posts and add your file there. Remember that GitHub has a very cool Markdown editor, so you can write posts using github alone.
Hollow was created to create a multiplayer blogging platform. All posts submitted to this repo will appear at http://hollow.phpixie.com . If you feel more like coding than writing you can make Hollow better and make all the people who post blogposts happier.