Calendar Cog interfaces objects within Second Life to a Google Calendar. Since Google calendars can be used by multple people, the objects in world can be used to coordinate for an entire group or other similar activities.
For more information visit the
Mechanized Life page, or one of our
Stores.
Please note, to use the system you need a free
Google Calendar account. Simply sign up before logging in for the first time and you will be good to go.