Hi:) Maybe somebody will help me to undestand the situation. I use to have 1 block at some pages (text only, at the middle of the page). At the top of the page was situated a banner from direct advertiser. As this advertisement have stopped for a month I desided to add another adsense block instead (graphic only, at the top of the page). The problem is that in my country Google doesn't have a lot of graphic ads, & they are very cheap. So for now the code of the cheap ads is above the code of another ads. Could it be that because of placing cheap graphic ads at the top I decrease my earning?