Just read a great article over at SEO Book about how new ad units quickly replacing the much loved standard sized units from the past. You know them…good ole sky scraper, banner block.
What confuses me is that why are these ad units getting bigger, more obtrusive, more annoying? When I created my CTR burning WordPress Template, one thing I learned is that less is more. The smaller ad units I use, the better they perform. In fact, most of the money made by Google is from small ads served up with relevant content.