This guys site just sold on Flippa the other day and he was making a consistent $7K-$18K profit per month buying traffic and monetizing with Google and content.ad. His site is mindbuzz and you can check out all the info on Flippa. Is anyone else doing any similar native ad arbitrage? He uses some management software - Prezna to make his campaigns and push them to all the ad networks and those. I'm assuming his sources are either Outbrain, Taboola, RevContent, Content.ad, or Yahoo Gemini as the software integrates with those networks. Has anyone else tried this software?