Update on July 10 / 2009:
It's been a year since I wrote this post, now in 2009, facebook.com is again blocked in China. What a pity, what a shame! The same of you all, I want my Facebook and Twitter back!
BTW, this blog (ifgogo.com), aka Chinese in English, is a blog with different authors from all over the world blogging anything about China, Chinese, etc. I'd like to know whether you'd wanna be one of us :)
Update on July 3 / 2008:
It's back again, but not quite stable. There are occasionally package loss in the data transmission.
Anyway, I hope I was wrong, I hope it's just a little mistake of the censorship system. But for the damn censorship, my Application would get more users ;)
Update on July 2:
It’s totally down now. The other 2 IPs are also blocked. Take a look at this screenshot:
My ping result:

however, seems the Application server is "a little safer" than others :)

My tracert result:
C:\Users\awflasher>tracert 69.63.178.11
Tracing route to www.facebook.com [69.63.178.11]
over a maximum of 30 hops:
1 9 ms 7 ms 7 ms 221.223.96.1
2 8 ms 8 ms 7 ms 61.148.36.85
3 7 ms 7 ms 7 ms 61.148.5.209
4 8 ms 7 ms 8 ms 61.148.154.17
5 8 ms 8 ms 7 ms 202.96.12.197
6 51 ms 51 ms 51 ms 219.158.7.178
7 151 ms 151 ms 150 ms 219.158.3.118
8 * * * Request timed out.
Update on July 1: It's okay now, 2:58PM. Facebook.com now changed a new IP at 69.63.178.11. I am sorry if this post cause any inconvenience.
But they still blocked one IP(69.63.176.140) from Facebook: take a look at this pictures:
ping from inside China:

ping from outside China:

It's really a pity that I cannot access www.facebook.com. It's blocked just now on June 30, 2008.
It's "Beijing time 12:52PM".
I am just a web developer. I am not at all interested in political issues. But how can they just completely block a whole site? It's so rude!
My first Facebook Application is going to ship, what a pity!
It seems that only the www server is effected. The app server and developers server are all available and very fast.
some screenshots:

Ping from One of my server hosted inside the U.S:

Ping from China:

Tracert from China:
