If you're looking to create a visually compelling and interactive timeline with little fuss, Dipity might be worth a look. With Dipity, visitors can create their own timeline, and populate it with photos, video clips, text, and other items. The mission of Dipity is "to organize the web's content by date and time", and it is well suited for use by journalists, government organizations, teachers, and museums, among others. Visitors will need to create an account to get started, but the basic version remains free. Dipity is compatible with all operating systems.