Time.Graphics looks like an easy (and free) online tool for creating timelines.
It takes seconds to register, and it has a sophisticated, yet simple, interface, and you can easily add multi-media features.
I’m adding it to The Best Tools For Making Online Timelines.
We have just built and launch a new timeline tool called Time Path. I am very curious what you think about the tool. You can create a timeline via time-path.com.