On your group's public page, non-members/guests can submit application to request to join your group. Once they submit application, you will get notified via email and can review applications from the Pending Applications screen. Once you approve the application, the applicant will be able to join your group.
This is a new feature that was recently added - so if you have any feedback on how it can be improved, please let us know.
The links were showing only for non-members who were logged in. We just updated it so that it's showing whether you are logged in or not - you should now be able to see it. Please try again.
Thank you Seong. I guess I didn't understand that it was only visible for people that had already created a login. I'd love to be able to ask additional questions on the form when people apply. Is this a tool that you plan to develop more?