If you would like to join a Google Group, you can request to join from the home page of the group***

Go to groups.carnegiescience.eduIn the search bar, you can search for the name of the group. In this example, we'll look for the Stanford Plant List.

Click on the name of the group in the search results and you'll be redirected the group's home page. Click on the blue button that says 'Apply to Join Group'

A message box will appear asking you for your information. When you've filled it out and determined your email preferences, click on the blue button at the bottom left hand corner that says 'Apply to join this group'

After you've applied, the group owner or manager will need to approve your membership. After you’ve joined the group, you’ll get an email letting you know. 

***This is true only for mailing lists that are not directly and automatically handled by security groups within IT. For example, for Department of Plant Biology and Department of Global Ecology department lists, you would not be able to invite outside members. Those are lists handled exclusively by IT and Active Directory, not Google Groups.