See the ads below promoting Explosive sniffer dogs and Dog Training Secrets? These adsense ads are on my Marketing Superhero blog. Why Dogs? My first Superhero candidate was the Superdogs. Google renders ads based on content that resides within my blog.
There is relevance to the post but not the purpose of my blog which is to showcase the superheros and villains of marketing. Time will tell as to whether adsense begins to post more relevant ads or not.
Pretty neat seeing it in action though!