How to recognize chinese/foreigners?

To understand who is chinese and who is not; one can use some digital solutions:
If one doesn't use 'www.baidu.com' for search, he/she is not chinese.
If one doesn't use 'www.google.com', he/she is chinese.

If one does have a mail as 'xxx.163.com', he/she is absolutely chinese.
If one is hearing for the first time about '163.com', he/she is absolutely not chinese.

When encounter the question 'What's your qq number?' if has an answer; he/she is chinese.
When encounter the question 'What's your qq number?' if becomes stupid; he/she is not chinese.

For video search if using 'youku.com' or 'tudou.com'; he/she is chinese.
For video search if using universal sites as youtube; he/she is not chinese.

If one non-chinese hears and trys one of those chinese websites, he/she will never use the others. Because they are much more useful than their equivalents! I strongly recommend them:)

Well, in fact the problem origins from the language isolation inbetween two sides. One side speaks chinese and besides claims that english is a very difficult language and accordingly refuses to reach english resources. On the other hand, the opponent side can speak and communicate in english and besides claims that chinese is the world's most difficult language and accordingly refuses to reach valuable chinese resources.

So, there is a very huge demand on the market for a website that meets these two polar language users. Here it is:
http://zhanawar.blogspot.com
:)