Cold Turkey - Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
Aeon Timeline - "The timeline tool for creative thinking. Capture, create and explore ideas."
Freedom.to - Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
Preceden - Preceden makes it easy to build simple, powerful timelines
Stay Focused - More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.
ChronoFlo Timeline Maker - Create beautiful interactive timelines that you can share online