This is a question for all of you. Don't you guys have an called Whatsapp on smartphones? I mean even we have our Uni class group and have added our teachers in that group. So whenever there's some information that needs to be passed on to us or results or changes in timetable or off lectures, our teachers just post it in the group
It's much much convenient on Whatsapp
So why don't you guys use that? 
Or BBM (okay, so I'll tell you (sorry NFFU that you will hear this again

).. BBM, Whatsapp, Line, Kakao Talk, etc are messengers or social medias that are used widely here. Lots people install those in their smartphone, include me. Unfortunately, I am one of those people who chooses to keep distance from social media. The reason is the same. We meet in real life, for friends. It's really annoying to see updates of their statuses and/or pics. For example, when we had exams.. the night before the exam, they would update their statuses about it, maybe a little material. Just admit it, lost people feel this as disturbance(?) because we might think, "Oh, he/she has finished studying!" or "What? Why does he/she learn that material? It's not even on the hints. Has the newest news updated?" Life is not calm. I myself feel that my life isn't peaceful and choose to completely limit my activities there. I mean, I know some friends who feel that too but they choose to keep using it.
But I do agree to use it as keep our communication between people who are far away from us like friends from elementary, junior high school, senior high school, join in the group, etc. But for now I choose to keep distance. Plus I am not able to support its fee for now. I allocate it for other. Plus my battery drops quickly when I activate mobile data

Anyway, I don't think I explain the matter well. Hope you get the point