As I was running through some old articles, I noticed my AdSense large rectangular unit showing something rather odd. There’s total of 4 ads in grid of 2×2 format. It looks weird at first, but if Google were to confirm this format, I think there’s a lot of potential of blending this style. Notice that the ‘Ads by Google’ on only appears on the bottom right; that makes the 1 column’s ad units look really like content. With good placement, this unit can certainly blend well.