Rich Skrenta's Blekko has finally launched with a very transparent algo and seo data available.
Conduct any search and under the site listing you will see links to seo | links and my favorite - adsense. Click on the "adsense" link and just look at what it gives you back
There are ways to hide your IP and adsense code from Blekko, we are working on it. I HIGHLY recommend you do that if you are an adsense publisher with many sites linked to one code/account. IP may not be a big deal to you.