Tipped by a friend, I just learned about “The Data Detox,” a sequential 8-day program for reviewing, cleaning up/deleting, and rethinking the data trails you leave (and people profit from and may exploit in other ways).
As you go through each day, the detox gives quick explanations of how data tracking works, and also explains the implication of decisions you have made (or not made when you just check ‘agree’). Related: the same group has a useful rundown on whether to stay on FaceBook or to go. Not a hard one for me, I was barely on in the first place.
A Few Reasonable Words 