Below is a listing of the top 10 search engines in the United States. These listings are displayed in ranking order for the top 5 search engines and alphabetical order for 2nd tier search engines along with links to their FAQ’s and Add/Submit URI pages. (source: http://www.seoconsultants.com)

Search Engine Statistics – What Market Share?

2007 December: According to 2007 December figures from Hitwise…

1. Google has the largest market share of U.S. based web searches at 65.98%
   • 2007 November 65.10%
   • 2007 October 64.49%
   • 2007 September 63.55%
   • 2006 October 60.94%
2. Yahoo is second with a market share of 20.88%
   • 2007 November 21.21%
   • 2007 October 21.65%
   • 2007 September 22.55%
   • 2006 October 22.34%
3. MSN is third with a market share of 7.04%
   • 2007 November 7.09%
   • 2007 October 7.42%
   • 2007 September 7.83%
   • 2006 October 10.72%
4. Ask is fourth with a market share of 4.14%
   • 2007 November 4.63%
   • 2007 October 4.76%
   • 2007 September 4.32%
   • 2006 October 4.34%

“Note: Data is based on four week rolling periods (ending Oct. 27, 2007, Sept. 29, 2007, Oct. 28, 2006) from the Hitwise sample of 10 million US Internet users.”

Source: Hitwise – Dominance continues with a six percent increase over last year.

Top 5 Search Engines in the United States (The Majors) by Rank

1. Google
   Free Submit: http://www.google.com/addurl/
2. Yahoo! Search
   Free Submit: http://submit.search.yahoo.com/free/request/
3. MSN Live Search
   Free Submit: http://search.msn.com/docs/submit.aspx
4. AOL Search – Powered by Google
   Submit: https://adwords.google.com/select/
5. Ask – Powered by Teoma
   FAQs: http://static.wc.ask.com/en/docs/about/webmasters.shtml#18

Alphabetical Listing of 2nd Tier Search Engines

1. AltaVista – Powered by Yahoo!
   Free Submit: http://submit.search.yahoo.com/free/request/
2. Fast (AlltheWeb.com) – Powered by Yahoo!
   Submit: http://submit.search.yahoo.com/free/request/
3. Gigablast – Real time spidering, really!
   Free Submit: http://www.gigablast.com/addurl
4. Netscape Search – Powered by Google
   Free Submit: http://www.google.com/addurl/
5. Snap.com – Portions powered by: Gigablast, Smarter.com, SimplyHired.com, X1 Technologies, Inc. and Enhanced by Ask.com
   Submit: http://www.snap.com/