There are more than 100 English speaking countries,also China is a large country who speaks .
If you target international markets then it's important to know which search engines are used by European web surfers.
Google has a large market share in the US. Astonishingly, Google's market share seems to be even bigger in Europe. Here are the numbers from the UK:
Search engine market shares in the UK
Google has a market share of 79.38% in the UK. Yahoo gets 7.72%. With 4.48%, Ask.com is the third biggest search engine in the UK. Microsoft's search engines MSN and Live get 3.75% and 1.53% (a total of 5.28% for Microsoft search engines).
Google is by far the most widely used search engine in these European countries. The stats show how important it is to optimize your website for Google