Case 1: A week ago I was asking a colleague about a movie she went to watch on a Thursday evening. Surprised, she asked how I knew she had gone to watch a movie. I told her I found out on Facebook. she said she doesn’t use Facebook. The information, with a picture and the name of the movie, was posted on Facebook by the person she went with.
Case 2: The technical events person had been calling me for years inviting me to corporate technology events. I attended a few, didn’t attend most, but for years all I knew was a name, an email address and a voice on the phone. I finally went online, popped in the person’s name and had their LinkedIn and Facebook pages in seconds. LinkedIn gave me their personal history. Facebook showed me pictures of their 3 children.