Capzles (Thanks Larry Ferlazzo for the reminder) is a site that has been around for a while which I finally had a chance to test out. After using it, I'd have to say it is probably my favorite online resource for creating Time Lines.
First, of all of these similar type sites, Capzles is easily the nicest looking one. It has a very nice cover flow type feel to it when you are browing your lines.
Second, it is totally "Web 2.0", meaning you can collaborate w/ others on time lines, share, email, embed, etc.
Finally, you can add all sorts of multi-media rich content such as video, audio, photos, etc into your time line which makes it very easy to get the exact look/feel that you are looking for.
Adding background music to your time line is such a great feature!!!
My only concern is about privacy in regards to CIPA/COPPA compliance. They have the typical standard of being 13 to sign up, etc. but I really want to know if there is any filtering/moderation going on.
Below is an example of my favorite time line I've come across so far on Capzles!!!
For more info click here.