VideoScribe - Make your own whiteboard video animations with Sparkol VideoScribe – award-winning video scribing app for PC, Mac and iPad. Free trial available.
Scrivener - Scrivener is a content-generation tool for composing and structuring documents.
TTS Sketch Maker - Create amazing whiteboard sketch videos with text-to-speech human-sounding voices in minutes!
Final Draft - Use your creative energy to focus on the content; let Final Draft take care of the style.
Doodly - Create your own doodle video in just 60 seconds
yWriter - Free writing software designed by the author of the Hal Spacejock and Hal Junior series. yWriter6 helps you write a book by organising chapters, scenes, characters and locations in an easy-to-use interface.