facebook is one of the most popular social networking services in ASEAN countries, i.e. vietnam, singapore and thailand. therefore it is one of easiest ways to make new friends, more and more Thai people have a facebook account. Also, facebook is one of the fastest ways to advertise any products, since it is commonly used by companies all over thailand. facebook is also used for keeping "rapport", e.g. good relationship among people in different groups such as parents and children, businesses and customers, teachers and students, so . etc., facebook has become the social nework service that most thai people use.