We have been developing a collaboration support system targeting on event spaces since 2002 because event spaces have rich contents and interactions among certain interest groups and myriad sub-communities. We have been developing the integrated system by elaborately fusing web support systems based on cyber world interaction and onsite support systems based on real-world interaction. Users can easily and peacefully interact with both the support systems seamlessly causing collaboration among users more active. This is because the system is designed not to rob personal information secretly but to return greater benefit to the user as he/she wants.