With Google Calendar, you can view the calendars of co-workers and colleagues from one online calendar. Their appointments are viewable right next to yours which streamlines event planning. Google Calendar also can be integrated with other components of Google Apps. You can communicate, share and collaborate via Google Mail, Talk and Calendar to reduce duplicate work and improve output efficiency.
Get people together easily
Just pick a time (based on when people are free) and enter meeting details. Google Calendar will send invitations and keep track of RSVPs.
Share project calendars
Share whole calendars company-wide or with specific people. Coworkers can have editing rights and see shared events alongside their own schedules.
Show event information in context
Embed an internal calendar in Google Sites or publicly on your website, no programming required.