Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Doit.im - Doit.
Noizio - Feeling that the noise of the big city is too much for you to bear?
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
zenmix.io - Ambient background sound generator