bumpski - 10:32 am on May 7, 2010 (gmt 0)
You can turn off interest based ads. If this is repetitious, sorry!
From your Account settings:
My Account Tab:
Scroll down to see:
Interest-based Ads Preference 
Interest-based ads: Do not show ads based on user interest categories. Visitation information from my sites will not be used to help create interest categories.