Topick - Gather around your favorite topics.
Preceden - Preceden makes it easy to build simple, powerful timelines
quippd - quippd is a social news site that anyone can edit.
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Localities.co - Transforming how the world travels
Tiki-Toki - Tiki-Toki is web-based timeline software for creating beautiful interactive timelines that you can share on the web.