Nielsen//NetRatings Search Engine Market Share November 2007
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Google
November: 57.7%
October: 55.5%
Change: +2.2
January: 53.7%
Change: +4.0
Yahoo
November: 17.9%
October: 18.8%
Change: -0.9
January: 22.7%
Change: -4.8
MSN
November: 12.0%
October: 13.8%
Change: -1.8
January: 8.9%
Change: +3.10
AOL
November: 4.5%
October: 3.7%
Change: 0.8
January: 5.4%
Change: -0.9
ASK
November: 2.7%
October: 2.9%
Change: -0.2
January: 1.8%
Change: +0.9
Source: Nielsen//Netratings
Note: As of October 2007 Nielsen changed methodologies. Due to these changes they say previous results “cannot be trended with current results.” Please take this information with a grain of salt.





Stoney, Nielsen changed methodology in October, so you can’t track back that far. See http://searchengineland.com/071228-092326.php
December 28th, 2007 at 2:43 pmThanks for the heads up on that Danny. I’d suggest that these posts of mine are for “entertainment purposes only.” I’ve added a note about the methodology change in the post.
December 28th, 2007 at 2:54 pm