Google's Zeitgeistis an overview of the most popular search terms for the week. They also have breakdowns in sub-categories for previous months (it runs a bit behind, now featuring November) or for countries around the world. For instance, this week's top search is, unsurprising "torino games". More surprising is that number 11 is "face transplant", or that #8 is "zillow". WTF is zillow? Clicking on the google link leads me to zillow.com. Hmmm... it's a real estate valuation search engine. Wow! Put in an address, and it gives you the assessed value of the home and others nearby, overlaid on a sattelite image of the area. See? This is why google zeitgeist is cool! You find the neatest things that have somehow passed you by!
If you haven't checked it out before, give it a look. It's strangely addictive!