Hitwise has a look at the visitor statistics for Yahoo and Microsoft’s websites, showing just how much market share in the United States the combined company would have.

Total market share for all Yahoo is 13.2% of all of U.S. internet traffic, with MSN having just 2.4% and Google 7.7% Combined, they would have 15.6%, over twice as much as Google.

Thanks to the growth of Live Search over the last year, Microsoft/Yahoo would have 31.75% of the search market, fully half of Google’s position, with room for that growth to accelerate. Yahoo’s frontpage has an amazing 71.4% market share, 86.8% with MSN. Yahoo Mail has 54.6%, 80% with Hotmail, almost 84% with Yahoo Address book, leaving just 5.51% for Gmail.

Yahoo News (7.4%) plus MSNBC plus Yahoo Weather owns 13.3% of news and media. Yahoo Finance (29.15%) plus MSN Money equals 39.3%. Yahoo Maps (12.84%) plus Live Maps equals 16.59%, behind Google’s 22.64%. Yahoo Movies (8.33%) plus MSN Entertainment-Movies equals 15.44%. Yahoo Games (5.5%) plus MSN Games equal 7.68%.

And, let’s not forget Flickr, with 12.01% of the Photography market, #2 in its category, and Yahoo Music with 6.52% of Music, #1 in its category.

Hitwise also has a comparison of market share in the U.K.

Follow all the news on Microsoft’s acquisition of Yahoo on this page.

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