You can block those with an ad blocker, or at your router / firewall if you are really concerned with them. I know that is not something for a normal person, bu

You can block those with an ad blocker, or at your router / firewall if you are really concerned with them. I know that is not something for a normal person, but neither is this search fogging, so seems like there might be better ways to do it. Not having an account would likely not help at all. All those companies have profiles about you even without an account. You might get lucky and start out as a few separate profiles, but they will eventually link them together.