The year-over-year gains for Google that we saw in Nielsen Online's October 2008 search engine rankings were mirrored in comScore's rankings for the same month. Google enjoyed a nice 63.1% share, up from 58.5% during the same time last year. Yahoo was at 20.5% down from 22.9%. Microsoft was at 8.5%, down from 9.7%. There was one major difference between Nielsen and comScore. Nielsen said the number of searches declined, while comparing comScore's October 2008 data to its 2007 data shows that the number of searches increased to 12.6 billion up from 10.5 billion. Check out the rest of the data here: 
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