AUGMENT OPEN AND DISTRIBUTED SOCIAL NETWORKING WITH CONTEXT AWARENESS Topics: Context-Aware Applications; Mobile Computing; Security and Privacy; Ubiquitous Computing Systems and Services; Ubiquitous Multimedia In Proceedings of the 1st International Conference on Pervasive and Embedded Computing and Communication Systems PECCS - Volume 1, 298-301, 2011 , Vilamoura, Algarve, Portugal