Hi, while I examine a website I saw an ad and this ad is transparent. When you brought the pointer on this advertisement transparency clears away and appears explicitly. I thought that is applicable for adsense becuse: - It's not trick. - Transparent ads are less disturbing for visitors. - If visitor wonders what the ad is the visitor has to bring the pointer on the ads (maybe click). I think it is attracting attentions naturally. I'm not change adsense source codes. An axample for what I trying to say (look at example two): http://www.w3schools.com/css/css_image_transparency.asp It can be done with a div and some style codes but I haven't decided whether it is appropriate for adsense or not. I couldn't find specific knowledge about it, what do you think about this?