Communities are groupings of distributed objects that are capable of com- nicating, directly or indirectly, through the medium of a shared context. To support communities on a wide scale will require developments at all levels of computing, from low-level communication protocols supporting transparent - cess to mobile objects, through to distributed operating systems, through to high-level programming models allowing complex interaction between objects. This workshop brought together researchers interested in the technical issues of supporting communities. This workshop was the third in the...

This volume constitutes the proceedings of the 5th International Conference on E-Technologies, MCETECH 2011, held in Les Diablerets, Switzerland, January 23-26, 2011. Originally 10 papers were selected from a total of 32 submissions. Seven additional papers were included following a second round of reviewing and improvement. The papers in this volume cover topics such as process modeling, organizational transformation, e-Business, e-Government, e-Education, and e-Health.