Search Engine Book - Chapter Three
 by Ian Cook

Chapter Three
The Search Engine Order of Importance and the Web Page Discovery Process

The pie chart shows that Google attracts more than two-thirds of the English reading eyeballs that search the Internet. This makes Google twice as relevant as all the other major search engines combined in North America.

For the English speaking market, only two search engines count: Google and (what we like to call) BingHoo — a combination of Bing (owned by Microsoft) and Yahoo.

Yahoo gets its results from Bing in 17 countries including the USA, UK, France, Germany, Spain, Mexico, Australia, and Brazil. Bing also provides results for Baidu, which owns 63% of the Chinese search market.

Globally, Google has over 68% of the worldwide market. The Chinese search engine, Baidu, is 2nd with a worldwide market share of 18%. Yahoo has 6.4% (boosted by Yahoo Japan) and Bing is 4th with 5.59% of the worldwide market.

It's very important to note the above figures reflect the desktop market share. BUT, in terms of the Mobile Global Search Share, Google is the 800 pound gorilla because...

Google has slightly over 90% of the worldwide MOBILE search market share

...which effectively gives them a monopoly on Mobile Search!

The Web Page Discovery & Update Process

Earlier we mentioned spiders, crawlers, and bots. These are actually sophisticated computer programs that are designed to "crawl" the web and discover new and updated web pages to save to their index. Search engine results would get stale very quickly if they didn't continually look for new pages and update old ones. And, of course, this discovery and update process must start somewhere. These starting points are known as Seed Sets — sometimes also referred to as the Crawl Frontier.

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