The measurement of influence of social media has gained importance. This paper introduces a matrix to measure the influence of social media from individual users. This matrix comprises the parameters to measure personal influence for Facebook, Twitter, LinkedIn, YouTube and Google+ while taking into account current technology limitations for each of them. Furthermore, backgrounds are presented to sustain the matrix with future changes in application programming interfaces of social media channels. While most available solutions regarding social media measurement use a keyword approach, our solution presents a framework focused on the individual's use of social media. This matrix and its scoring instructions can be used in future software tools for measuring the influence of Social Media.