Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
Sutori - Sutori is the easiest way to create an interactive story collaboratively.
SIMILE Widgets - SIMILE Widgets is an open-source “spin-off” from the SIMILE project at MIT.
Preceden - Preceden makes it easy to build simple, powerful timelines
Time.Graphics - Time.Graphics is a timeline and free of charge online service for creating infographics.