I know that the blue area at the top of a results page is for the top ads (where many of mine appear), but how does the blue bit at the bottom of the page work? a) Do ads in the blue bottom bit rank *after* the list on the right, or before? b) Why is there sometimes *no* blue bit at the top, but ads with a blue background appear at the bottom? I would like to understand this as I'm spending good money on Adwords. Many thanks guys -----------------