YPN is kind of wierd with its ads it chooses. I have 1 page with a couple thousand words on it and every time I add a new post YPN seems to find 1 word in that post and target that. For example I had the phrase "mall of america" in their, just 1 time, and the ads targeted that phrase. Now I have to delete that phrase so it wont target it! Just watch your ads everytime you update your content so you arent getting stupid ads put in there. It has happen to me quite a few times and its annoying.