Create or browse interactive timelines with webapp Dipity. The service can create any sort of timeline you want, but it really shines when creating a personal timeline; that's because Dipity integrates with tons of popular webapps, like Flickr, Twitter, Last.fm, or any RSS feed, so that all you have to do is provide Dipity with a few usernames or URLs and it'll automatically build your beginning timeline for you. After items are added, click on any item on your timeline or zoom in for a closer look. If you're using it in the personal timeline manner, Dipity is essentially another lifestreaming app along the lines of previously mentioned FriendFeed—it just has a different way of presenting your stream. Dipity also supports manually creating timelines on any subject, but if you want total control over your timeline, check out how to roll your own hosted timeline.
Dipity