The STELLAR Network of Excellence is a European FP7 project that aims to address the fragmentation of disciplines and community fragmentation in technology enhanced learning (TEL) research. It brings together researchers from different fields to develop a strategic research agenda for TEL. The project will support collaboration and capacity building between European research teams through shared projects, tools, and agendas. It also seeks to engage policymakers to provide strategic direction for integrating TEL excellence. The project is organized around three "Grand Challenges" or research themes.