If you're legit, adsense if FTW. I do a lot of black hat on Bid Traffic though. Adsense could easily find out if you're doing black hat activities but Bid Traffic sucks at that.
I suggest bidtraffic, its very easy to make money with them. All you have to do is join an exchange site and update your keywords to either tramadol, or another high paying keyword. Then you just exchange 1 click per hour with another person and boom you've got money. But you have to keep your CTR rate down for better payouts.