Pop-Up Paranoia

Is it pop-up paranoia or can they read my mind? Each time I simply think something on my screen I'm sure to find. I wonder how they know it. Am I sending out some ~waves~? Can I try to stop the pop-ups? It seems nothing really saves. My mind just starts to wonder how they always seem to know.... just which ''Free Ads'' will interest me and which ones not to show. :) I am haunted with this thought now that they see me through my screen. I have pop-up paranoia..... (now I'm wondering what they've seen!)