What is your opinion about Facebook?

            Nowadays, a lot of people use Facebook, which is one of the most popluar social network service in the world. In Korea, many many people also use facebook now. Just about 1 year ago, facebook was not very popualr in Korea, but now is different. I think that on facebook, there are many useful things. People who use facebook contact with people who they already knew, and they even make friends who didn't know before via facebook. Todays, people can use this program anywhere because we can use facebook not only by using our computer but also by using our cell phone. Smart phone is a right-hand woman because social network service is very brisk after smart phone was created. Of course, using facebook has some drawbacks. For example, there can be a person who is addicted to like this program; it is very dangerous. The person can use this program during all his/her break time or even all time. The person might get an anxiety that comes from what he/she can't check facebook. Even if this emotion can light very first time, it can be a very serious problem by passing time. However, I think that there are a huge number of beneficial things which you can get by using facebook. Naturally, you can contact with your friends or family very easily. Also, you might get many interesting and useful news on facebook. Even, you can play some simple and funny games when you are bored. Therefore, in my opinion, facebook is very useful program.