In Gordon's post he says:
"Almost all click through ads are INVISIBLE to me. I really don't even see them."
seems to be true for a majority of us old timers. Maybe we have selected vision or just don't care about ads but they are certainly invisible. I know I don't even look at the ads unless the title catches my eye or I think the material will provide a piece to the puzzle.
I was gonna include that in my previous post but plum forgot. See, when I say old fogie, I'm not kidding.
tk