And by Big Brother I don’t mean the government. No, I mean the companies you do business with. If you want to get mildly freaked out (or majorly league freaked out depending on your nature) read this article in Forbes How Target Figured Out A Teen Girl Was Pregnant Before Her Father Did . Oh and if you are installing apps on your phone take a look at this post on the Blogs at CACM - Most Smartphone Apps are Spyware . Now most of these stores are about practices that are intended to benign at worst and helpful to the consumer at their best. Of course they are designed to be helpful to the company more