Facebook users can invite non-Facebook users by email to events, if they want to.<p>But for viewing what your friends and parents are doing on Facebook?  Well, they could change their privacy settings to be public, but that would hurt their privacy.  You want to be in their social graph, but not have a Facebook account.  What does that even mean?  Do you just not want to have a password?  There&#x27;s no rule you have to post any content, if you just want to view other&#x27;s.