On Thu, Mar 27, 2008 at 05:21:25AM -0400, Mark Neidorff <mark@neidorff.com> was heard to say: > OK. Try that search again. This time add ", windows xp" (the comma will give > you 2 graphs on the same axes), or try ", windows vista". I don't think that > this is a valid tool for predicting user base. Yes, that's quite true: there's no evidence that search volume has much at all to do with user base. Daniel