Current research on political knowledge focuses to a large extent on differences between Internet users and non-users. As Internet use is shown to constantly increase, more complex questions arise related to the impact of Internet on citizens political involvement. This thesis takes a deeper look at how differences in online content (facts vs. facts and analysis) and interaction levels (passive reading vs. reading and commenting) affects factual and self-perceived political knowledge, issue certainty and desire to engage in politics offline. The results of this study suggest that increased...