This document summarizes a study on the pedagogical design challenges of open online courses (MOOCs). It examines three open online courses on composing educational resources, learning environments and networks, and learning analytics. The challenges explored are creating community engagement, monitoring participation and content, designing adaptive materials and activities, and providing feedback. Case studies of each course describe their design approaches to addressing these challenges through tools like blogs, forums, and video conferences. The conclusions emphasize that open online course designs must support planned learning activities with carefully selected online tools and see openness as an opportunity rather than a threat.