"Google accounted for 72.15 percent of all U.S. searches conducted in the four weeks ending Oct. 2, 2010. Bing powered search received 23.64 percent of searches for the month with Yahoo! Search and Bing receiving 13.54 percent and 10.10 percent, respectively.
The remaining 65 search engines in the Hitwise Search Engine Analysis report accounted for 4.22 percent of U.S. searches."
"Google Sites ranked first with 10.3 billion searches, followed by Yahoo! Sites in second with 2.7 billion (up 3 percent) and Microsoft Sites in third with 1.7 billion (up 2 percent)," comScore commented about search volume.
No worries, websites such as eBay and Craigslist are also found in the Google search engine.
With MSN and Yahoo joining forces, the Bing search becomes more relevant.