Now a days social networking sites are very popular .the most popular site is facebook. u can get in touch wid ur friends by this easily.its rly very easy to use.u can change ur profile pic u can add pics videos, u can chare ur thoughts liking dislikings evry thing wid fb app.
and its the safest way too.u can sign in many sites easily if u hav an account in fb.
u will get regular basis update and notifications regurding ur profile.
its rly an app which I love most .