googlefight

Here's an excellent way to waste time at work. You can pit two keywords of your choice against one another to see which one gets more Google hits. New York and Los Angeles were neck and neck until New York pulled ahead by about 14 million hits. When duking it out against Hollywood, however, New York only won by 5 million hits. The site claims to list the last 20 fights, so you probably don't want to take on your archnemesis by name.