I'm considering doing some affiliate work for vape shops in Europe. Can anyone clarify which channels and methods are still open in which country? I usually do advertising with RTB, PPC, social and email (opted in only). Which are ok? And which vendors are (for instance Google sometimes has restrictions on categories which are not prohibited by law). Last question, any good affiliate programs that you know? Or ideas on where to start besides writing to them? Would rather have one good relationship with a mid size vendor then something else.