This is nothing new, yet so many people over-look it. I first introduced this technique back in 2007 on my old blog Cashtactics. Since 2007, if I had to guess how much this *content* source has generated me in revenue, it’s at least in the $XXX,XXX.XX range.
Today, for the last-time ever, I reveal one of content sources that has fueled countless digital information products. Enjoy!