Just came to a web site.
To bring the focus of scrolling away from the Google tool bar to the web site, I clicked in a grey area right of the article, an advertising opened.
I controlled the site: right of the article was AdSense, but all the area left of the article, mouse over showed the google doubleclick URL.
Next I wrote a comment. After sending the comment
"Your comment waits for moderation. Please click on a banner of one of our partners"
I want to report this fraud, bud can not find out where.