The ad bar across the top (the blue part) annoys me, no so much that it's there, but that the ads are dynamic. Meaning, everytime I click, the "width" (height) of the bar changes depending on the size of the ad. It makes the body of the boards jump around a lot - which is obnoxious, especially when it means I have to scroll a bunch more.
Suggestions to fix - place SMALL fixed sized ads in that space, preferably like the small height Mushkin one - and minimize the AMOUNT of the blue around it. The bar as a whole is too "wide" (tall). Any of the bigger height ads should go in the left side ad bar. In fact, I don't care if you stack up 3 or 4 ads along the side there. It would make the flow and usage look better instead of having all that dead space squeezing the boards over.