I've been registered with Google AdSense for more than half a year, but I haven't really displayed the ads much. Two weeks ago, with the launch of http://ntt.cc, I officially decided to start using Google AdSense. Google does not allow us to disclose our actual income, so I can only lament the low value of Chinese ad clicks here, while marveling at the high price of English ad clicks. Whether it's in terms of relevance, click-through rate, or cost per click, the result reflects that the Chinese advertising market is simply an expendable nuisance... Today, I received an email from Google saying that they have already sent the PIN code via regular mail. I'm quite curious about where the regular mail will be sent from; surely not from Google China, right?