Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
Google Open Source - All of Googles open source projects under a single umbrella
Preceden - Preceden makes it easy to build simple, powerful timelines
SmallDevTools - Handy developer tools with a delightful interface
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
whatdevsneed - This is whatdevsneed.