Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
Blogtrottr - Track RSS feeds and send updates to your email inbox.
Preceden - Preceden makes it easy to build simple, powerful timelines
Winno - Most efficient way to follow what's happening in the world
Timeline - Timeline is a cross-platform application for displaying and navigating events on a timeline.
Mailbrew - Automated email digests from Twitter, Reddit, YouTube & more