Is it good to combine different PPC? Can your account be limited by do that? If there is a lot of ad will they increase chance that you will earn more. Cause I see a lot of website do that and fun to see it.
Nothing wrong with that. You can combine with others ads. I don't think your account will be limited from that. I already try and its just fine with that. My account still fine since 2-3 years ago.