Hi guys, I have a link unit on top of my website which I *think* grabs greater attention to the visitors compared to the ad unit on the right navigation and in the middle after the latest post. Since link unit clicks didn't count to generate any direct revenue, I'm thinking of switching it with the button ad unit (125x125) on the top right of the navigation. So now the top one will be the banner ad unit (468x60) and the right one will be 160x90 link unit. Do you guys think this replacement is a wise move or should I stick to the current ones? Thanks in advance!