quick-time-management.com (one of my sites)
Its a very simple site with a simple goal. Log yourself through out the day. It will alert you every 25mins to see what you are doing and then it will ask you to have a 5min break.
This is an early version of the site as it is new and is simple. But simple in a good way, all you want to do is input what you do through out the day and then you can check back. This site is especially good for the person at the desk and is mobile friendly
As the site says
"Quick-Time-Management.com is a tool to track your activities throughout the day and showing you how effective you are and keeping you on track!"
You can also see the coming features