Readymag - Readymag is a design toolkit that helps create immersive digital experiences without developers in days, not weeks.
Bludit - Bludit is a web application to build your own website or blog in seconds, it's completely free and open source. Markdown support.
MadCap Flare - Documentation for Any Audience, Language or Format
BaferCMS - The fastest and the easiest way to edit content "in-place", while looking at the website.
Publitas.com - Publitas helps you to drive more visitors to your online store by publishing catalogs online.
WonderCMS - WonderCMS is the smallest flat file CMS. Completely free, open source, privacy oriented for over 12 years.