We need to remember that Hotmail and Yahoo have a lot of worldwide users. I think these numbers are a little more accurate, considering Atlantic's reporting bia

We need to remember that Hotmail and Yahoo have a lot of worldwide users. I think these numbers are a little more accurate, considering Atlantic's reporting bias (page 20): http://dl.dropbox.com/u/46245195/Strategy%20and%20governance%20at%20Yahoo!%20Inc.pdf http://dl.dropbox.com/u/46245195/Strategy%20and%20governance... Gmail is also probably growing, at least if we compare advertising growth rates. I don't actually have data for the mail services and I realize there will be discrepancies, but this is from a presentation some time ago for the above case that sort of visualizes advertising (mail) growth: http://dl.dropbox.com/u/46245195/comp.png http://dl.dropbox.com/u/46245195/comp.png