Forum Moderators: martinibuster
If the ads are still there after a few days, I suspect that you did not use the Preview Tool to determine the respective URLs, but used just the display URL that is shown in the ad.
Often, the display URL (shown in the ad) is different from the real landing URL. For example, a display URL that says "www.greenwidgets.com" might have a landing page of "www.widgetredirector.com/red?jump=greenwidgets.com" - i.e. you have to block widgetredirector.com in order to block greenwidgets.com
Advantage: You block all the scum run by widgetredirector.com
Disadvantage: You might block legit advertisers also using the widgetredirector.com service