Hi guys, I recently began reading up on cpa marketing and believe its something I want to do. I am currently going through an ebook, as well as watching a few vids and checking some forum posts to gain knowledge. I have a few questions with regards to CPA. 1. Do I need to know and understand PPC before I can delve into the world of CPA? 2. How much do I need to "know" about CPA before I try and join affiliate networks? 3. Is there any disadvantage in CPA if you are not in from the USA? Can you use proxies in this field? Also, I would GREATLY appreciate it if you could give me a resource on CPA that you believe is excellent in explaining it all. THANKS!