This paper presents the Massively Open Online Course for Educators (MOOC-Ed) network dataset. It entails information on two online communication networks resulting from two consecutive offerings of the MOOC called "The Digital Learning Transition in K-12 Schools" in spring and fall 2013. The courses were offered to educators from the USA and abroad. Though based on the same course, minor controlled variations were made to both MOOCs in terms of the course length, discussion prompts and group size. The dataset provides opportunities to examine how participants leverage online communication forums to support their learning. In particular, it allows modeling network mechanisms to better understand factors that facilitate or impede the exchange of information among educators.