Google Trends is a Google Labs service that allows you to see what others have been searching for with Google. Trends graphs how often a term is used over time and where geographically most people are searching for a given term. Google doesn’t label the Y-axis with any types of numbers; however, it does allow you to see relative increases and decreases for a specific term. In addition, like Google Finance, the graph is marked with indicators relating back to news stories of the day for that search term. These stories help SEO types figure out user trends when certain news stories break on the Internet and can provide matching content accordingly. This should be useful to the people in advertising and marketing, who will be able to compare brands over time. For the rest of us, it’s just amusing to compare, say, the ipod with the xbox, or blu-ray and hd dvd, or aac, wma, and ogg vorbis, and so on. But the results may not be accurate. Trends is only based on a subset of Google searches, choice of term can make a lot of difference, and as with normal Google searches, a lot of the results are probably spurious.