Scene One is online book writing software for authors at all stages of their writing journey.
At it's core, Scene One provides an easy text editor in which you write your scenes, and collects all these scenes together into a project. A 'project' is usually one book, but it lets you work the way you naturally want to.
It also has many powerful tools to help you write your books. It has an AI writing assistant that can help suggest new text, can rephrase sentences, and even expand stub scenes. It also has a wiki for all your story elements, and can then track every occurrence of these elements. This means you can easily jump around in your story to see the first time you mention a character or track down a detail you can't quite remember.
Scene One also tracks your daily words written, has advanced exporters, lets you collaborate with other authors, and much more!
Finally, we have an ever-growing blog for writing advice and tip and tricks.