Adding Members to My Group - Quick Start Guide
Once you create a group, the next question you'll probably be wondering about is "how do I add users my group"?
There are several ways that site members can join your group. As a group administrator, you have some different options for setting up the Group/Join/Approve process. It's flexible and convenient once you understand how everything works.
Have a look at the following step-by-step group tutorials for more details: