(this is Rich, on Kathy's computer, BTW)
Huh, I just looked, and the two most recently reported sites on their homepage were marketingsherpa.com and spywaresites.org!
Google has come under some scrutiny lately for how it collects and retains personal information. If you have a Gmail or other account, they retain your search patterns, keyed to your user ID. They've purchased and been developing some ad-targeting technology that will take these search patterns and try to tailor ads more to your interests, as opposed to just relevant key words to your search.
Their stated goal is to collect and analyze all the information on the Internet. People forget that includes the trail you leave as you move around the Internet. Google Analytics is one way this information is collected. That'w why it's free for website owners--you're collecting your visitor's information for Google. And A LOT of people don't like to be followed.