In Gmail, on the left, click Compose.
Next to To, instead of adding each team member’s email address to your email, just enter the group’s email address.
Go to Google Calendar and create an event.
On the Guests tab, go to Add guests and add a Google Group's mailing list.
Click Save.
Click Send to notify guests.
You can share a Google file with a group—like an online document, spreadsheet, or presentation.
Open the file and click Share.
Enter the group’s email address.
Click Send.
People you add to the group later can also access the document. Similarly, if you remove a member from a group, that person no longer has access to any content you shared with the group.