The purposes of this research were to develop project-based and blended learning activities using social media tools to enhance article writing skills of graduate students at Silpakorn University, and to study the article writing skill of graduate students, Silpakorn University. The instruments were interviews, a quality assessment, and a article assessment. The results showed that project-based and blended learning activities were constructed with a theory-based format which consisted of project based learning, blended learning, research studies on social media tools, and article writing skills.