RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
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!
UseScreen - Are you facing neck pain, headache, myopia and other COMPUTER VISION SYNDROMES effects? Do you want to boost your productivity and want to manage it? Do you to be better user of your PC? Here you are, UseScreen solves all this issues.
Time Sink - Time Sink helps you track how you spend your time on your Mac.
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.
Anti-Social - Anti-Social is a productivity application for Macs that turns off the social parts of the internet.