Today I also utilized another one of Google's helpful tools. It is called Google Calendar. This can be very useful if you have several people with whom you need to share a calendar. If you share the calendar with someone who also has a Gmail account, they can see the updates that you make on your calendar. They can also add their events as well. Google Calendar is not only limited to two people, but you can add many people to the same calendar. This is also a printable calendar.