Those google ads continue to puzzle me. At this point some are correct, and some are old — you get different ads depending on whether you're coming in through www.clevershark.com or clevershark.com/, for instance. The ads also take quite some time in catching up to the content. I may have to look into putting together a sort of "hybrid ads" system where some articles would have Google ads while others have other ads where other ads would be more appropriate. I have to say it's a little frustrating.
I thought it might be a good idea to have some sort of “google ping” which an AdSense customer could use to notify google that his/her site has changed, as this would be mutually beneficial to both the advertiser and Google (which gets to sell more ads or increase rates). Pretty much something outlined in Tristan Louis’s article on the subject save that I see this primarily as an added value to the AdSense proposition (especially for sites who don’t see so much traffic), whereas Tristan sees this more as a general-purpose tool for Google.