BillyS - 10:51 pm on Apr 14, 2011 (gmt 0)
blogcritics is a classic, drill down into some articles. I count eight different ads.
I also did a calculation on the area of the target content versus other items. There were 570 units of space on the page. The content represented 70 units of space. That works out to 12.5% of the HTML (not counting margins) dedicated to content. That's thin in my mind. It looks more like a giant ad than information.