Virtual Communities / Online Learning / Social learning / Professional Learning Community / Gamification / Gamification of elearning / Gamification in Education / Massive Open Online Courses (MOOCs) / Networked and Social Learning / Social Gamification / MOOCs / Gamification of elearning / Gamification in Education / Massive Open Online Courses (MOOCs) / Networked and Social Learning / Social Gamification / MOOCs