After all those years we (better: some of us) have been complaining about arbitrageurs, we are still finding blatant MFAs advertising through Adsense. For example this guy. The ad reads (paraphrased): Foobar Hotel Widgetville Book the Foobar Hotel in Widgetville online at unbeatable rates! www.yetanothermfadomainname.com This takes you to a page where you get eight sponsored results, powered by Overture (Yahoo! Search Marketing). No useful content at all. Zero. Just ads. Now, I wonder WHY do they get past Google's quality control? A) What 'quality control'? B) They spend too much money with Google to say 'no'. C) Google is affiliated with these guys. D) They found a way to trick Google's 'quality control'. I am undecided. Everything is possible. What's your take?
Adwords team many times approves and starts displaying ads before they check them. Imagine you would have millions of new ads and thus urls to check. Your ads would need weeks before approved! It's impossible to check them all manually. So probably they passed the automatic inspection, but a quality control from humans most likely has not been performed.
Simply they don't see sites because there are a lot lot lot of new compaigns started everyday, so they just accept ! That's why publisher like us get a penny for a click