Message I got when I logged in to Adsense: "Your ads have recently appeared on websites you haven't authorized. To avoid lost revenue, make sure to authorize any sites where you display ads by visiting your account settings." In the allowed sites area: Unauthorized Sites The following sites are not on your Allowed Sites list but have displayed ads using your AdSense publisher ID within the last week. Please note that since this report contains weekly data, it might contain sites you allowed less than a week ago. Site URL www.stumbleupon.com So do I add stumbleupon to the allowed list or is Adsense warming me not to bookmark my site on there again? Thanks
I don't think using StumbleUpon for Adsense ads is good idea, anyway why are you taking risk because I think they don't allow to use ads on sites like these.