I must say that in all my tries in affiliate marketing, it fail most of the time or at some time. Other times, I don’t earn enough to meet the cash out amount, which translate to nothing. Therefore my interest is never in affiliate marketing, but I still like to explore around search engine optimization, and do spend time to explore certain keyword. I must say that predicting the next trend is much easier than to compete in the current keyword for search engine optimization.
From my curiosity and experiment, I somehow got a niche last Christmas whereby I got a small amount of payout from Amazon affiliate alone. It was a simply website created with blogspot and with only 18 blog posts targeting Air Swimmers Remote Control Nemo and Shark. Pretty happy with the result as it is mainly search engine optimization that result in the payout.