Allow others to have read-only or read-and-write access to specific groups
1. To share, go to Manage My Groups under the Organize tab
2. Select "Manage Sharing" and then "Start Sharing This Group"
3. In the next box, enter the email addresses of people with whom you'd wish to share the folder
4. Shared groups will appear in Other's Groups under the Organize tab for those whom you are sharing the groups