Aviary (http://www.aviary.com/ http://www.aviary.com/) comes to mind. For the book production, PressBooks (http://pressbooks.org/ http://pressbooks.org/) is an

Aviary (http://www.aviary.com/ http://www.aviary.com/) comes to mind. For the book production, PressBooks (http://pressbooks.org/ http://pressbooks.org/) is an attempt to simplify the process and disrupt the CS based tool chain. I am also working on something in the domain. Hoping to show it to the world very soon!