What are some alternatives?
When comparing Little Bird Tales and Archive of Our Own, you can also consider the following products
Storybird - Visual storytelling community
Fanfiction.net - The most popular fan fiction website in the world according to Wikipedia
My Storybook - Make children's storybooks online for free.
Cowbird - Cowbird is a simple tool for telling stories, and a public library of human experience.
Storyboard That - Storyboard That is the world's best online storyboard creator.
BlueTail.in - Our passion is telling the stories that are really matters, teaching people about life and happiness