ya, u r exactly right by that way. I want to say that site is very few among chinese sites. So this almost the last corner in CHina for Java guys. I say that because I am masters of several chinese famouse Java sites. Many times, I check the questions posted by guys in CHina, I recognize that there is no good reference in CHina now since many people misleaded by the awlful tranlation books and ask many fancy questions. So I suggestion this IBM site.

On the other hand, I think it is also good for guys in Canada as a resource for fast browser.

My question, what did you mean by
" Part of the reason is that friend misunderstood the word "extension". ", I am comfused by that.

By the way, I am in Toronto now. Glad to talk with you. But some professional questions are not answered professionally. Anyway, I think it is a very good site owing to your hardwrk and good personality.

wolf