C3LLO is the central platform and online learning environment used for delivering online and blended learning curriculum at the Center for Lifelong Learning (C3L) in Oldenburg, Germany. During this session, we will present the primary features and functions of the C3LLO system, as well as demonstrate the use of C3LLO for delivering C3L's fully online, international Management of Technology Enhanced Learning (MTEL) master's programme.