To my knowledge, the Chinese internet was always tightly controlled and restricted. Companies like Sun Microsystems and Cisco ironically already have provided the infrastructure that allows the Chinese Government to hold the reins of the network in their hands, through the agency of a few central nodes.
So now Google says that it will comply in censoring Chinese internet searches. The interesting thing is that it offers a perfectly capitalist reason for doing this, which could be seen as being dressed up in humanitarian clothes- it is better to have limited access, than no access at all. Google made it sound like it was allowing a few evils instead of everything evil. But given its web giant status, it seems to have taken this opportunity to bestow a benefit of doubt upon itself; in saying that at least some access is permissible and hence should be allowed, it is saying what appears as a logical humanitarian statement. Is it really that, or the more mundane goal of making some profits instead of none at all? After all, in the search phrase related advertising that appears on Google, how much advertising is going to profit from a search for 'Democracy', than say, a search for Shoes, Computers, Cookery books, or Winter clothes??