Tamcoco – The “Text-and-More” Common Collaborative Virtual World Environment michael.daw@manchester.ac.uk Rich virtual text-based world – fun, usable, sense of presence Naturally extendable to video, audio, shared applications Suitable for a large number of participants Non-native speaker participation in meetings Differently-resourced end-points Excellent audio and video quality for effective collaboration “Lockable virtual room" metaphor based on Grid security model Integration of wide variety of shared applications Demonstrate usability through several groups of end-users