On the homepage of Pet, Dog, and Cat of the Day there are often text ads (but not always) in a right-hand column that come directly from Google. These ads require javascript. They are not popups or popunders; it's just text. Ad blockers will block them. Even on many computers that support javascript, with javascript turned on, the ads will not show up. Because of the uneven support of javascript in web browsers many people will never be able to see the ads.

   I will post more of my thoughts later.

      Paul