Who is using Facebook and what are users doing while on Facebook?

identified five broad categories of research that correspond to five broad questions: (a) Who is using Facebook and what are users doing while on Facebook?

(b) Why do people use Facebook?

(c) How are people presenting themselves on Facebook? (d) How is Facebook affecting the relationships among groups
and individuals? And

(e) why are people disclosing personal information on Facebook despite potential
risks?