Pomobeez is the tool of choice to organize your working time.
Inspired in the pomodoro technique, it lets you configure your working session, planning your work time (the orange counter) and your breaks (the gray counter).
You can share your session, so others can synchronize with you, or know when you are available.
You can tag your working time to keep track on what you spent your time.
Tags can be public (visible when you share your session) or private (only for your eyes).