I found googles page where they tell you which catagories of things they believe about you (basically age and interests).
Some of them where right, but more than half of them was wrong (I am not, for the record, interested in Paleontology).
Some of them where right, but more than half of them was wrong (I am not, for the record, interested in Paleontology).
See "Your categories"
Edit - Sorry, I copied the link from the Google results page, it acutally shows up as adspreferences in the ad, but ads/preferences below. Kind of strange.