That same concern was shared with a group of colleagues these days! I told them that some magazines or pamphlets had arrived at my ofc for some pages that needed my opinion. Where did those pages get not only my work address but also the information that might interest me. I'm also surprised when Google tells me which places I've been and what I normally visit, not to mention that I go to many stores and they already know what I've bought, the quantities and when I should buy them again. When this happens to me, I immediately remember 1984 from Orwell and the big brother. We never thought it would happen, but we are being monitored by the big eye of technology and worst of all, we ourselves are providing the information they need. Thank you for your interesting post today, @kus-knee.