Google Blogscoped posts an interesting explanation of the browse sites to target feature on Google AdWords that Inside AdWords announced on Friday. It provides categories of sites with an idea of the number of impressions each site gets per day. Besides  browsing sites by category, you can also target sites by describing the topic, list URLs to check for availability or similar sites.
You can also target a campaign by demographics such as income, gender or ethnicity based on comScore data.  I am curious if there are any head to head comparisons of MSN AdCenter demographic targeting and Google.
About the author
Lee Odden is CEO of TopRank Marketing, a B2B marketing agency trusted by some of the top business brands in the world to deliver full funnel impact with the Best Answer Marketing system. Lee has presented at hundreds of marketing conferences globally while being recognized for his expertise in the Wall Street Journal, The Economist and Forbes. He is author of the book Optimize, has published over 1.5 million words on the B2B Marketing Blog and is host of the Beyond B2B marketing podcast. Lee is on a mission to help B2B companies elevate their marketing to become Best Answer Brands.
