More perils of targeted advertising

The study showing that exposure to Baby Einstein-type videos correlates with decreased word comprehension in infants and young toddlers is getting lots of news play -- and lots of Google-served ads. What do you suppose the ads are trying to sell? Sometimes word-based targeting alone is not the smartest idea. Interestingly, the ads at the US News story were not hawking Baby Einstein videos when I visited, even though the content was the same. I wonder if there's something additional about the site that changes the targeting.