Language used in international searches

My good friend and fellow blogger, Timothy Dahl, asked a good question in response to my last post about international search traffic and what language they search in. 

So should we consider Spanish or any other language when planning our SEO strategy? Do Mexicans search in Spanish and then read English websites if they find what they are looking for?

In Mexico, I have seen that the early adopters of the Internet are for the most part very well educated and read English with ease.  So, the answer is to simply keep doing what you are doing.  If searchers here are open to finding results in English, they will search for terms in English and click on the results.  But, the big question is what results does Google deliver?  When users go to Google in Mexico, they are automatically re-directed to Google.com.mx which is programed to deliver results in Spanish.  So, unless users in Mexico are typing in English terms or using the advanced search function and searching specifically for something in English (which I am sure only 0.005% of users are actually using advanced search), then results will be in Spanish.