In this study, the researchers examined if and to what extent social media tools such as Facebook and Twitter can augment participants' learning experience in an xMOOC and offer an additional social space. Two research questions guided this inquiry: (1) What did MOOC participants consider the usefulness of the Facebook group and Twitter feed associated with their MOOC course? and (2) How did the participants use the Facebook group and Twitter feed associated with their MOOC course? The findings from participants' perceptions and usage using both quantitative and qualitative data indicated that the additional social space provided by the two social media tools can augment the learning experience by providing an environment to share resources, connect with others, enhance communications, and provide a space to post personal feelings or reflections of learning in an informal and quick manner. However, the findings did not provide strong evidence to indicate any deeper interactions beyond these uses. The results highlighted the importance of mediation and scaffolding from instructors in using social media tools in order to help connect learners in large online courses such as MOOCs.