Over the last few days there have been several reports of a new feature being rolled out to Adsense publishers. The new features allows publishers to explicitly list sites / domains that are allowed to use their code.
It's not clear what will happen to publishers who do not opt in.
It's not clear what will happen to publishers who do not opt in.




I haven't really read much on blogs about this feature, I guess it's slowly being rolled out to it's publishers.
Paul
Most of the new features on large platforms seem to get rolled out slowly - or at least they should!
I just wish the information on it was a bit clearer
Michele