Ever do a quick Google search for “pizza delivery” and forget to put in your town? I did and, conveniently enough, pizza delivery locations pop up within a 20-mile radius of my home. And after I searched for flights between California and Washington, DC, I began seeing ads pop up for trips suspiciously similar to that very flight.

Look, few of us still imagine that we visit the Internet without being tracked to some degree, and in many instances (like pizza delivery options), it can prove convenient. It’s great for my personal “butler” to know that I might not want […]