Smarter than I look!
Finally figured out how to join groups in OT Connections... I feel so much better now. When I clicked on the name of the (private) group on someone's page, I kept getting "you are not permitted to access this page." Had to click on "view all groups" on the right column and then go through the pages to find mine, and then click "apply to join." I'm glad I don't feel technologically impaired anymore.