Comparison of users of "Gmail" and "Yahoo! Mail"

It is a mail function which is especially indispensable among online services, but it is a comparison of the number of unique visitors of "Gmail" which is a newcomer, which was launched in April 2004 and a classic "Yahoo! Mail" .

Recently, the volume of mail exceeds 6 GB and it is Gmail which is very strong momentum, how far can you compare Yahoo! Mail to?

Details are as below.
Blue is Gmail, green is Yahoo! Mail. As for the number of unique users, Yahoo! Mail wins overwhelmingly at present.


As you go with the current growth rate, Gmail seems to overtake Yahoo! Mail in 2010. What will happen actually?


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