PPC advertisers who choose to receive Adwords Content Network traffic can now start to filter unlimited number of content network partner sites. This was announced on Inside Adwords Blog last month.
The Site Exclusion tool provides you with more control for your campaigns that are targeting the Google Content Network by allowing you to exclude your ads from showing up on particular sites or sections of sites.
This is another positive improvement of Adwords contextual advertising to exclude websites with Adsense ads that are delivering low quality traffic to advertisers. During late Q3 last year, the limit of site exclusion was increased to 500 sites from originally 200 sites.
Site exclusion on the Content Network is equivalent to negative keyword matching on the Search Network. On both networks, the respective features give paid search advertisers higher degree of control over their Adwords campaign spend and eventually better ROI.
The Site Exclusion tool allows you to prevent your ads from showing on specific sites in the content network in the same way that you can add negative keywords to stop your ads from showing for specific keyword searches.