Advertisers in Google AdWords program now have the ability to get data on the individual sites where their ads are being run. For each domain or URL, advertisers will now be able to see impressions, clicks, and conversion data. This means that advertisers will have good information to decide exactly which sites they want to advertise on.
This should be good news for sites which perform well for advertisers. Sites with data that the advertisers don’t like will see less competition for their ad space, resulting in lower bids.
Found via Search Engine Land