The number of Virtual Design Studio experiment that used WWW (Digital Pin-up Board) and e-mail for a synchronous communication, is rapidly increasing. There is no doubt that those media are quite helpful, but it also became clear that writing and managing pages of DPB require extra work for designers and technical staff to proceed with collaborative design. To make VDS a popular approach of collaborative design, developing convenient tools to support writing and managing pages of DPB has become inevitable. This paper discusses a prototype of group ware that supports asynchronous design communication with DPB: GW-Notebook that can be used with common web browsers on net-PCs.