Facebook, Google and Twitter are right there looking over your shoulder!
The fact may not surprise, but the nature and extent doubtlessly will. The scourge of Google, Facebook and Twitter invading our privacy as revealed by CNBC:"What you may not realize, though, is 76 percent of websites now contain hidden Google trackers, and 24 percent have hidden Facebook trackers, according to the Princeton Web Transparency & Accountability Project. The next highest is Twitter with 12 percent. It is likely that Google or Facebook are watching you on many sites you visit, in addition to tracking you when using their products.