Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
DocGen - Static website generator
Manuskript - Open-source tool for writers.
openSourceCM - Web-based legal document processing and contract management
Final Draft - Use your creative energy to focus on the content; let Final Draft take care of the style.
LogicalDOC - A document management system such as LogicalDOC can help your organization better manage business processes and put order in the chaos of documents every day run your business.