The banning of Google Adwords accounts in December has created a demand for other traffic sources. As many affiliate marketers found  that their account had been banned by Google, a search for traffic was on. Many affiliates have been trying media buys. There are also many PPC networks to try and test. The only way to figure out if a PPC network works is to test it. It is going to cost a bit of money up front and you will have to do some work with your campaigns. If it all works out you found a great traffic source then it’s well worth the cost of testing. If it failed and you just can’t get any conversion then it’s time to move on. Since my ban from Google I would estimate my spending on different traffic sources around $1500 with mixed results. There were a few networks that just did not convert and a few that did convert, but not enough to be profitable. It’s all about the testing. If you can mange to get just one traffic source that converts well at a low cost per click then you will make up for your losses. Keep trying and look for reviews and case studies from other affiliates, but remember that no one is going to reveal a winning PPC network with fear of competition. You will be on your own to test and find networks, but it always pays to have a bit of information before you spend any money.