Inviting a group to an event in your Google Calendar is the easiest and most efficient way to invite substantial numbers of people at one time. Using Google groups, you can invite up to 10,000 attendees for one-time events and 5,000 attendees for recurring events. This new feature eliminates the hassle of adding a large number of guests to calendar events one by one.
Click here for more information on using this new feature.
Need help creating a group? Click here for step-by-step instructions.
