Ads through AdSense, advertising through AdWords, and analytics through Google Analytics.
The tools are very well designed, fast, and provide just about everything I need for the small
collection of sites that collectively handle maybe a few thousand hits a day.
In fact, just two weeks ago, I received my first check from Google for $124 -- representing over
a year of their ads displayed on my low-traffic sites.
So imagine my surprise when my account was disabled last Thursday.
From the email: "While going through our records recently, we found that your AdSense account has
posed a significant risk to our AdWords advertisers. Since keeping your account in our publisher
network may financially damage our advertisers in the future, we've decided to disable
your account."