Well dbonds the laws on US are against but in the UK and other markets they aren’t.
From what I’ve learned from trial-and-error PPC sucks. Some suck less but almost all suck in some degree.
Overture and Google are the best but they don’t accept us anymore.
You have Overture in UK market, they accept gambling ads. There is also Espotting. Espotting does not give you 400 leads in one day, but from what people say, the traffic is real and good.
It would be a favour that not only google and overture stop accepting gambling ads but also the other ones. You know why? Because they suck and webmasters waste money in fraudulent programs.
The only real traffic you can get is from search engines which means that your investment is more in work and will not get results in the short run.