Unidentical Twins : SEO isn't SEM

. Search engine marketing involves click costs. Search engine optimization works through free traffic. Those two facts are the basis of a popular myth: that it's easier to get good ROI through SEO than it is to get the same ROI through SEM.There are many reasons why that myth isn't true. But today, we'll deal with just one difference: the landing page difference..In SEM, you decide the landing