I have tried CJ in the past with two of my sites but in each case it seemed as though the results were not worth the effort (low traffic plus a very specific niche that does not convert well). More recently my site has grown significantly to PR5 and is pulling in a decent amount of highly targeted organic search traffic. I am considering trying CJ again, but before I do I have a question: How long did it take you to see a return on any affiliate links you wrote into your articles? Should I go back and add affiliate links to the articles that are already performing well in traffic or should I leave them alone and create new articles that are targeted specifically at the products I am linking to?