High paying keywords commonly called PPC or keyword with a value of payment per click is high, much sought after by publisher adsense. While to determine exactly HPK tricky. Many factors are to be able to decide.
Indeed, many who write about the PPC, with hundreds of keywords. Whether true or not, I myself have never tried it. And whether it's just the SEO techniques to fool visitors, or indeed as a PPC. I used a small-scale experiments, although not 100 percent proven, but little can increase the value per click.
