I'm going to put some Google Analytics up, see how they run.
Google is, I think, quite brilliant. Assuming it ever works (it isn't operational yet), this creates wealth for both sides.
See, you get to see who visits your site, how to enhance your traffic, and all that stuff - using an advanced yet tolerably simple tool! In exchange, Google gets the exact same information, allowing them to know exactly how much you are worth, how you should be weighed, and how much they should expect in terms of ad response!
Only a search-engine titan could perform this kind of maneuver. It's actually kind of scary to see a mammoth company dancing like a clever start-up. Yow!