Facebook groups can have one of three privacy levels: open, closed or secret. Any Facebook user can join an open group, but group administrators have a greater degree of control over the privacy of ...

You can find and join Telegram groups for topics you like, whether you have an invite link or not. Telegram is a cloud-based messaging app that also has the option for end-to-end encryption. Telegram ...

After you join Facebook, you will likely join a few Facebook groups -- or more than a few -- and other Facebook members may add you to groups. If the notifications you receive from Facebook groups ...