I just heard that this is already available for US publishers, does it works? How much money you're making from it.
Only for U.S. Publishers, although you can get around this by getting a P.O. Box in the U.S. and by opening an account at a bank with branches in the U.S.A.
It doesn't work well at all, I am a US publisher, and its available for me, but really its different from content advertisments.