I am from China.
As I known, there are no good local English PPC, Directory and Search Engine.
english.sina.com is powered by asia-links.com, their data is not from www.sian.com in Chinese. what's more, there are a few people to use it, in fact most of Chinese surfers don't know it at all.
If your target market is at China, in my idea, the following maybe are your choice, because they are popular in China.
Google Chinese, www.yahoo.com.cn, tw.yahoo.com, www.yam.com, www.chinasearch.com
All above are based with Chinese, not English.
and popular English SE in China are Google and Yahoo
[edited by: Woz at 8:46 am (utc) on July 29, 2003]
[edit reason] formatting [/edit]