From Webalon Ltd:
Tiki-Toki is the best and easiest way to create beautiful interactive timelines that you can share on the web. You'll be creating timelines in minutes. Nothing to download. Tiki-Toki works in your browser. Sign up for our free account and you can start creating a timeline now. Tiki-Toki provides integration with Flickr for images and YouTube and Vimeo for videos. Share timelines with anyone. Each timeline you create has its own unique url that you can send to friends or colleagues. Tiki-Toki allows you to create different categories for stories (events) and colour code them. Get your friends or colleagues to contribute to your timelines. Timelines created using Tiki-Toki can be embedded on your own website or blog.