My friend ask me to advertise his site on Adwords using my Adwords account account. Is this ok? his site is has google adsense ads under his account.
It's ok but your friend's site must "Provide relevant and substantial content" and not just a collection of ads.
follow up question: What if my Adwords account got banned, would his adsense account get banned too? What if my friends Adsense account got banned, would my Adwords account be banned too?
no and no its not illigal what you do, but why would you do it??? you can just give your money to your friend w/o google taking a cut of it
he does not own a credit card so he cannot join adwords. that is why i am advertising his site on my adwords account and he is paying me cash to advertise his site on my adwords account.
yeah why not i am promoting with my adword account many sites from my friends.... i mean who has the time to tun 10 sites