our clients SGI - Keeping it Organized With WebCal from Silicon Graphics wrote in with the following note:

I wanted to tell you that the WebCal application is still in use, like day one. Since we installed the application [almost a year ago], it has never failed, and has provided the service it was meant for. [SGI]

We use it as a global group agenda. Everybody writes what he/she is doing so that anyone else can keep tabs on them. It is also used to allocate two demonstration rooms to prevent collisions. Considering people + rooms this is a total of about 20+ agendas handled.