The information behaviour in closed Facebook groups differ from the one in people’s feed. Using Cox’s theory of information in social practices, Haythorntwaite’s theory of ties in computer mediated communication, McKenzie’s theories of cognitive authorities in information and Metzger and Flanagin’s theory of credibility heuristics the aim of this bachelor thesis is to gain a deeper understanding of how the members of three closed Facebook groups handle the information shared and if the groups act as a filter bubble for the information obtained. The researcher applied a netnographic approach and used an online questionnaire to collect the data. In the empirical data the researcher found that the members used the group rules as norms for what and when they post and that they were very critical when it comes to the information shared in the groups. The researcher also found that the groups acted as filter bubbles and that the members saw that as the groups purpose.