I have found that either blended or a bright red border(with blended interior)works best for my sites. If possible, use blue type for the link colors, they do best in general. The best position for me is this... with A being Adsense(a large rectangle), C being content, and N being navigation: LOGOLOGONN CCCCCCCCNN AAAACCCCNN AAAACCCCNN AAAACCCCNN CCCCCCCCNN CCCCCCCCNN CCCCCCCCNN CCCCCCCCNN CCCCCCCCNN
Television has made the general population feel the same way as Essex_boy. Almost noone actually enjoys seeing adverts. To the OP... make them look less like ads by using Adsense instead of flashy banners, pop-ups or pop-unders.