What are some of the hardest niches you guys have entered? For example, in arbitrage, ringtones is a death trap. How do all those top advertisers stay in business with such low margins while the cpc is so high? Conversions can't be that great I imagine. Their QS must be out of the roof or something, but man there are some niches that seem inpenetratable even if you optimize to the max.
I tried skateboarding, and while some might not think of it as hard, there are some expensive rates and cpc...insane. I blew 100 dollars in a matter of 2 days, with 4 conversions.
Yeah, it was really good, but the commission on those conversions is low. Skateboards are a hard money maker.
Cell phone for me. Google don't allow brand name bidding and keyword is hard to find. But at least i can sell 1 brand new N95 from amazon before i quit