So, you want to get into traffic arbitrage? Before we dive in, let's look at a definition of what arbitrage actually is... ar·bi·trage is defined as "the simultaneous buying and selling of securities, currency, or commodities in different markets or in derivative forms in order to take advantage of differing prices for the same asset" . So, in the case of online traffic sources, we would be going out and finding a traffic source and then finding a marketplace or other network that we could sell that traffic right back to and make a profit. We're essentially becoming a middleman. This is the same thing that the traffic networks do themselves with publishers and advertisers. Now, while this simple formula may work in theory, I've found it's usually pretty challenging to buy traffic from one source and make any sort of profit from just directly pointing that traffic to a different network. If it were that easy everybody would be doing it. So, ...