According to comScore panel data, Bing’s standalone US search share was at an all-time high of 11.8% in November of 2010. comScore’s data reports a combined Bing standalone and Bing powered Yahoo search market share at 28.2%.
Experian Hitwise’s ISP and panel data have Bing’s standalone US search share at 10.10% with a combined Bing and Yahoo search market share of 25.27% for November 2010.
We’re looking at Bing powered search capturing 25-28% of the US search engine market share. Microsoft’s marketing campaigns with Bing and their recent partnership with Yahoo have given them a significant minority of search engine market share.
Google is still king of US search market share though. Google’s search engine properties still reign supreme with 70% of US search engine market share.