farmboy - 3:33 pm on Jun 8, 2010 (gmt 0)
A) The site is large enough to have permission from Google to go crazy with AdSense.
B) Google is not aware of the site having more than 3 ad blocks.
C) The site has three ad units which could easily result in 8 (or more) individual advertisements.
D) There are non-AdSense ads on the page that have been made to look like AdSense ads.