Does the chart prove that SEM has transformed to mean paid search? I don�t know.
Some of the rise might indeed be fueled by people who no longer use the term PPC, as they did in the past. But some of it might be also because of more and more people are seeking information about search engine marketing, the umbrella term, in general.
There�s no way to know for certain. It�s also confusing that when I double-checked on the popularity of SEM using Google�s AdWords Keyword Tool, exact matches (which are what the chart above are also supposed to show), are much lower: ajmalseotipsandtricks.blogspot.com
Some of the rise might indeed be fueled by people who no longer use the term PPC, as they did in the past. But some of it might be also because of more and more people are seeking information about search engine marketing, the umbrella term, in general.
There�s no way to know for certain. It�s also confusing that when I double-checked on the popularity of SEM using Google�s AdWords Keyword Tool, exact matches (which are what the chart above are also supposed to show), are much lower: ajmalseotipsandtricks.blogspot.com