because It's easy, convenient and quick to communications, which have several ways, such as email, phone and chat application functionality. And the use of communication devices, it is most necessary. Many people use different devices to communicate, such as computer, phone and tablet, and there are also many other applications that use communication as well as facebook, Line, call etc.
for me. I prefer to use the phone to play the Facebook because it is convenient to carry and easy to communicate with friends . Even people who are distance, you can be aware and talk chat anytime. This makes the distance is not a problem for me,
but that's just my opinion. Because everyone has a communication different. No matter what, just use it properly.