Whether you like it or not, companies have their eyes on you. They track whatever you do online: what you click, read, buy, or share. Don't be surprised when you see related ads on banners and pop-ups whenever you visit a website because it only means you've been tracked. Most of the time, it gets freaky because you're clueless how these brands know what you've been looking for. It's simple--there are trackers in the world wide web waiting to collect and share your data.