I just saw the 'how much do you earn' thread and thought that I should also get into the CPA marketing biz. I've signed up with 4 CPA networks and I'm ready to go... I saw people earning 300-2k per day. But that's mostly from PPC and they must be spending around 100-500$ per day for advertising. What's the best way to startup?? I'm thinking article marketing. However input from you guys will be appreciated.