This paper presents a model to measure the social capital of individuals seeking employment. The paper will explain the dimensions, which are used to measure social capital and gives an overview about the influence of social capital for the employment search process. Further define the paper the population for the research and will explain the hypotheses to evaluate the existence of social capital on social network sites. The interest for the scientific community is the existence of social capital in social networking sites and to explain, along the social capital theory the behavior of people on social network sites if possible. This paper describes the construct for measuring social capital with relation to the employment search process. Furthermore the paper describes the channels through which to identify available employment opportunities and explain the changes of social capital under the consideration of social network sites and social media. The paper is the theoretical basis to test the functionality of social capital in social networking sites.