Facebook - from personal medium to mass medium and back again: young peoples' use of and attitude towards Facebook 2015-19

Social media, most prominently Facebook, has come to play an important role in
everyday life of many people throughout the globe. When Mark Zuckerberg launched his social network site, The Facebook, at Harvard University in 2004 few, if any, could expect, that 15 years later in 2019 it would have 2,5 billion users and 70 billion dollars revenue, of which almost everything comes from advertising. The latter shows that Facebook is far beyond the original social network site, it is a major player in the platform economy and in terms of
advertising, readers and interaction, in many countries it is more important than traditional mass media.