  The study explores whether the use of Twitter in Massive Open Online Courses
(MOOCs) promotes the interaction among learners. The social network analysis
shows that instructors still play a very central role in the social media
communication and the communication network between students shrinking over
time. The mere use of social media fails to promote learner-learner
interaction. More research is needed for understanding learner motivation and
how instructional design can help increase their engagement and participation.
