Everyone these days is interested in whether or not their sites are listed in Google. OK, maybe it's just me, a handful of companies and search engine optimization people. Nevertheless, there's a simple way to find out how search keywords compare to one another. At Google Fight, you have the ability to compare two sets of search terms and see which one has more results.
You'll notice a list of a handful of the most popular fights, if you can't think of anything to compare. After a couple of clicks, it's pretty boring, but it's a neat idea ... if you care about the number of results in Google, that is.