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!
Defonic - Create a unique sound environment at home or in the office
Freedom.to - Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
Noizio - Feeling that the noise of the big city is too much for you to bear?
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.
Relaxing Soundscape - Design your own relaxing soundscape for relaxation & sleep.