i have my arcade site submitted to baidu and accepted within a week,so far i received 5 visitor since Dec last year .
I will wait until 1 billion Chinese will own a laptop or PC and will have access to an affordable Internet connection. The wealth of China is in the cities, not in the provinces.
Baidu is very useful if you have a Chinese Site. But the point is that I heard that Baidu will manually take away websites which get the top rank unless you pay for some advertising...
Don't do it if your site is not chinese! I did, and now I'm trying to deal with lots of spammer bots which sign up to my vbulletin! This is only thing I get.