The focus of this thesis is to examine posts on library’s Facebook pages and to investigate possible connections between posts and user response. The study examines posts published from thirty different libraries Facebook pages over a two week period to examine if any correlation between different subjects or types of posts affects the degree and type of response from the users.The findings show that photos stand for the majority of the published post concerning its type and that activities at the library was the most common subject of posts. After using eta as measure of association a tenuous connection between degree of response and the posts subject and between the degree of response and the type of post was found. The standard deviation, however, was high in the majority of the variables used. The data also showed that posts containing videos had a very high mean of user response as did the subject culture news, although either of them constituted a sufficiently large part of the examined material in order to prove a connection. Previous research also supports the connection between posting of multimedia like videos and the engagement from the users. / Program: Bibliotekarie