Just a short note on Google Trends, which is quite popular since its launch sometime in 2006. Google finally added a numeric scale which – of course – does not show exact search volume figures; instead “Trends scales the first entered term so that its average search traffic in the chosen time period is 1.00. Then, each additional term is scaled relative to the first.”
JoJo did some more research on that (and has some nice pictures available), also be sure to check out the Google blog on this.
