Booktype : the wordpress for on-demand book publishing

SourceFabric has just released BookType, an open-source collaborative publishing platform designed to help authors, copywriters and reviewers write and publish a book on paper, web, tablets and smartphones.
"Booktype is a free, open source platform that produces beautiful, engaging books formatted for print, Amazon, iBooks and almost any ereader within minutes. Create books on your own or with others via an easy-to-use web interface. Build a community around your content with social tools and use the reach of mobile, tablet and ebook technology to engage new audiences."

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