This Bachelors exam is about young adults and their use of Mobile Social Network System.The use of mobile social media has become more common in today’s society, ranging fromteenagers, the dominating internet users, to the elderly. The traditional purpose of use inmobile phones, the voice communication from one place to another, has in Sweden beendominated by text communication instead. Along with the development of Smartphones andthe mobile interface, the births of mobile social media have increased in the market. Reports have shown that of all the devices with the possibility to connect to social networks,the one kept closest to our bodies is the mobile phone. One of the advantages of using thephone for mobile social media is that you can easily and smoothly update whenever andwherever, within one arm’s reach. An update can be anything the user feel like sharing withfriends. For example the user’s location, feelings and thoughts or it could also be a picture ora video clip. Our report focuses on what factors contributes to the use of mobile social media, in whatcontexts the updates happen in as well as where, how and why they do.