Want to know what people are talking about (or at least searching for on Google)? I always find this really interesting:
Google Press Center: Zeitgeist
This week's top queries:
1. Saddam Hussein
3. jenniecam (?)
4. 50 cent
5. internet explorer vulnerability (?)
8. gift guides
9. santa clause
10. orlando bloom
#5 is the most surprising, since it involves three words.
You can also view, different countries searches, end of the year searches, etc.