Google have released a list of the top 1,000 websites as measured by Ad Planner.
The list categorises each website, and also includes unique visitors, reach, page views and whether or not they have advertising.
Interestingly Google are also allowing advertisers to specify that they only want their content network ads to show up on the sites in this list.
More interestingly still are the names in the list. At least seven out of the top twenty sites will probably be unknown to most people, but at the very least should provide insight and opportunity to squeeze that little bit more out of Google AdWords.
