You can still visit Google homepage,but if you try to search,the connection will reset.

PS:I'm using VPN now.

It is very sad.If there's a Google.cn,I can still access Google without using VPN.Something is better than nothing for Chinese people.

Not blocked in beijing

http://www.google.org.cn/posts/is-google-hongkong-blocked.html

I cannot reproduce the block from my location in China. I can load google.cn's Hong Kong redirect fine, and still use google.com as usual (as before, google.com is sometimes, rarely and temporarily, blocked when after too much searching with Blog Search, News Search or Image Search though).

Ok,I can access Google now.Maybe It was a temporary block.

Added an update: Google's Alan Davidson said that Google had noticed "intermittent" censorship of the Hong Kong site. (http://www.nytimes.com/2010/03/25/technology/25google.html)

I got report says that Google Groups still censor some posts display to Chinese IP. eg., by viewing url [1] with a Chinese IP, it display "Messages not complying with local law, regulation or policy do not appear" as usual.

[1] https://groups.google.com/group/cnchina/msg/eed4a9e13e86048d

Visiting above URL from China I indeed get

"Message not found.

We're sorry, but we were unable to find the message you were looking for.

Messages not complying with local law, regulation or policy do not appear."

Philipp yes, but actually this post is exist...you can confirm this by using an proxy in China :)

Related, but odd:

http://www.neowin.net/news/china039s-censorship-firewall-invades-foreign-systems

And

http://blogs.csoonline.com/1179/chile_nic_explains_great_firewall_incident

From referenced Neowin article:

"Internet users in Chile and the U.S. came under the control of Chinese Firewall censoring today, according to Good Gear Guide. A networking error related to the operation of BGP (Border Gateway Protocol) routing used by high-level DNS servers is cited as the cause of the redirection of many users from popular sites like Facebook, YouTube, and Twitter.

Certain ISPs began getting DNS data from a Chinese root DNS server operated by Swedish company Netnod, and giving the data intended for Chinese users to computers overseas. This effectively brought these users under the full censorship of the Chinese Firewall system, and cutting off their access to many popular sites.
...."

From referenced CSO's article:

"Chile NIC has released a pretty detailed statement explaining what happened earlier this week, as networks in Chile started sending DNS queries to China, and getting unreliable – Great Firewall of China style – results.

There are still a lot of unanswered questions, the main one being, how exactly did this happen, but you can see some speculation here. I've asked Global Crossing for a comment, but have yet to hear back from them.
...."

[Google translation follows]