Mnemograph Timeline Tool

As noted on this blog, Mnemograph is:

a web-based timeline software application for creating, collaborating on, and sharing history and planning diagrams

Still in beta, but I can see it being used for creating any number of biblical timelines. I like the ability to zoom in and see more details or zoom out to get the big picture. It also works well as a web tool providing the ability to add pictures, link to web sites, etc.