01869nas a2200133   4500008004100000245006400041210006400105520135800169100002101527700002301548700002201571700001701593856012501610       2012                        eng d00aBuilding community and collaboration applications for MMOGs0 aBuilding community and collaboration applications for MMOGs3 aSupporting collaborative activities among the online players are one of the major challenges in the area of Massively  multiplayer Online Games (MMOG), since they increase the richness of gaming experience and create more engaged communities. To this direction, our study has focused on the provision of services supporting and enhancing the players' in-game community and collaboration activities. We have designed and implemented innovative tools exploiting a game adaptation technology, namely the In-game Graphical Insertion Technology (IGIT), which permits the addition of web-based applications without any need from the game developers to modify the game at all, nor from the game players to change their game installation. The developed tools follow a design adapted to the MMOG players' needs and are based on the latest advances on Web 2.0 technology. Their provision is performed through the core element of our system, which is the so-called Community Network Game (CNG) Server. One of the important features provided by the implemented system's underlying framework is the utilization of enhanced Peer-to-Peer (P2P) technology for the distribution of user-generated live video streams. In this paper, we focus on the architecture of the CNG Server as well as on the design and implementation of the online community and collaboration tools.1 aBouras, Christos1 aKapoulas, Vaggelis1 aPapazois, Andreas1 aAdam, George  uhttp://telematics.upatras.gr/telematics/publications/building-community-and-collaboration-applications-mmogs?language=en