I've been registered with Google AdSense for more than half a year, but I haven't really put the ads up. 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 actual earnings, so I can only lament how cheap Chinese ad clicks are and marvel at how expensive English clicks are. Regardless of relevance, click-through rate, or cost per click, the results reflect that the Chinese advertising market is essentially an insignificant afterthought... Today, I received an email from Google saying they have sent the PIN code via regular mail. I'm quite curious about where the regular mail will be sent from; surely it won't be from Google China, right?