What are some alternatives?
When comparing Sutori and Twile, you can also consider the following products
Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Timeline JS - Beautifully crafted timelines based on Google Spreadsheets that are easy, and intuitive to use.
liniaa - See all your precious memories at a glance.
Newslines - Newslines lets people create shared timelines on any person, product or news event.
Timeglider - Web-based timeline software for creating and sharing history, project planning and more...