Our employees who work in China access Internet through international dedicated line,so for me,everything is accessible,unless the target host or network was broken.
But for I used ADSL of Tietong to access Internet when I went back to my hometown in Spring Festival holiday,I didn't know that Wikipedia was blocked at all.
I am not clear about why it was blocked,and I have no interest for the answer,people who want to block it must have sufficient reasons.
I know nothing but Wikipedia is a cyclopedia which is easy to use,free and grow continuously.
I agree that the websites about "XX Gong" and "18X" should be blocked,but I don't think we should block the web site like Google and Wikipedia,even there are some improper contents in them,they have much more advantages than disadvantages.
In one word,don't talk about politics please.