AbstractNow day’s Social networking sites are very popular among the youth. The paper highlights how and what extend the user of State Library Odisha are use social networking sites (Facebook, Twitter, LinkedIn, and Google+).There are 83 no of response received from the user. It has found that Facebook (95.2%) is most popular social networking site among user of state library Odisha. The user of State library Odisha spent hours in Social networking sites. It is also found that, the users are well aware about Social Networking Sites.The users of the State library Odisha useSocial Networking Sites via Mobile 69(83.1%) rather than other devices like Laptop, Tablet, desktop etc.