CircaVie, an excellent web tool to create multimedia timelines, just shut down. It was one of only three web applications listed on The Best Tools For Making Online Timelines.
Fortunately, Dipity, one of the two remaining sites on the list (Xtimeline is the other one) has created a way for users of CircaVie to save their old timelines and convert them to Dipity ones.
Thanks to Read Write Web for the tip.
I think TimeRime is pretty good and enables a lot of embedding of multimedia: http://www.timerime.com/
Did a review here: http://quickshout.blogspot.com/2008/11/great-time-line-tool.html
Could be worth including on the list