I don't know much about internet and I have no idea what is called, or if there's a name about this. I am a noob when it comes to this stuff. Everytime I do a little more research on google about something, once I am done and start surfing around, it happens that I get ads with the subject I was checking before. For example, I was reading about trading markets, then suddenly appeared different ads on websites about trading systems, which it never happened before, because I recently started to read about that. Yesterday I searched motocross and it's happening again.
the add with the motocross in the right. It's not a coincidence, if there's someone who did not observed that before, do a test for a few days. I can update everyday screenshots if it's necessary. And I am curious how this works, because it's quite interesting. So, who knows ?