This just handed me: Experian Hitwise has just announced that Google accounted for 72.15 percent of all U.S. searches conducted in the four weeks ending Oct. 2, 2010. That's up 1 percent over the previous month.
Meanwhile, Bing powered search received 23.64 percent of searches for the month -- down 2 percent from August.
Yahoo! Search received 13.54 percent -- down 5 percent from the previous month -- and Bing received 10.10 percent -- up 2 percent from August.
The remaining 65 search engines in the Hitwise Search Engine Analysis report accounted for 4.22 percent of U.S. searches. In other words, you can safely ignore those spam emails that say, "I visited your website and noticed that you are not listed in most of the major search engines and directories..."
Finally, my sources at Hitwise tell me that search engines continue to be the primary way that Internet users navigate to key industry categories. Comparing August 2010 with September 2010, Shopping and Social Networking categories showed double-digit increases in their share of traffic coming directly from search engines.
Film at 11.