Information forms the basis for beliefs, judgements, decision making, and behavior. Nowadays, the amount of information available is continually increasing. Still, the quality and credibility of the corresponding sources vary widely. Thus, to avoid making judgments and decisions on basis of biased information, the credibility of information and sources must be carefully evaluated. However, information regarding the source is often not immediately accessible and, instead, must be purposefully sought. The standard information board paradigm does not include such a source information search. Therefore, we investigated whether that paradigm can be extended with an active search of source information in order to investigate search behaviors with regard to content und source information. To do so, we presented participants with information boards on different topics from two domains (i.e., health and education). The boards contained a question to outline the topic of information search in addition to four related sources. For each source, we provided information on topic-related expertise and potential conflicts of interest as well as content information regarding the question (i.e., pro and contra arguments). Information was hidden so that participants had to actively search the information. We were interested in the search start, search amount, differences in search between the domains and belief revision due to information search. Results show that participants primarily began information search with source expertise before continuing on to content information. In general, both content and source information were searched. Domain did not influence the start but the search amount⎯more information was searched on topics in the educational domain. In addition, search appeared to influence prior beliefs. For some topics, we observed changes in beliefs following information search.The findings indicate that our variations in the information board paradigm can be used to investigate content information search and source information search simultaneously.