Typehut - Super simple publishing platform
StoryMill - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless and many more. Based in MN.
Telescope - Telescope is an open-source app that lets you easily set up your own online community.
Novelize - Novelize is an online novel writing app designed to keep authors on track.
Blogging for Devs - Grow your blog as a developer without an existing audience
Manuskript - Open-source tool for writers.